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55160544 = 2531015689
BaseRepresentation
bin1101001001101…
…0111011100000
310211210110001010
43102122323200
5103110114134
65250140520
71236566625
oct322327340
9124713033
1055160544
1129155a2a
1216581740
13b57429a
14747c34c
154c98ce9
hex349aee0

55160544 has 48 divisors (see below), whose sum is σ = 146255760. Its totient is φ = 18201600.

The previous prime is 55160519. The next prime is 55160549. The reversal of 55160544 is 44506155.

55160544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×551605442 = 6085371228751872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55160549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6852 + ... + 12540.

It is an arithmetic number, because the mean of its divisors is an integer number (3046995).

Almost surely, 255160544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55160544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73127880).

55160544 is an abundant number, since it is smaller than the sum of its proper divisors (91095216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55160544 is a wasteful number, since it uses less digits than its factorization.

55160544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803 (or 5795 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55160544 is about 7427.0144742016. The cubic root of 55160544 is about 380.6649115964.

Adding to 55160544 its reverse (44506155), we get a palindrome (99666699).

The spelling of 55160544 in words is "fifty-five million, one hundred sixty thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 101 202 303 404 606 808 1212 1616 2424 3232 4848 5689 9696 11378 17067 22756 34134 45512 68268 91024 136536 182048 273072 546144 574589 1149178 1723767 2298356 3447534 4596712 6895068 9193424 13790136 18386848 27580272 55160544