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55450105 = 512787323
BaseRepresentation
bin1101001110000…
…1100111111001
310212100011020121
43103201213321
5103143400410
65300253241
71242214054
oct323414771
9125304217
1055450105
1129333537
12166a1221
13b646019
147515a9b
154d049da
hex34e19f9

55450105 has 8 divisors (see below), whose sum is σ = 67064832. Its totient is φ = 44010288.

The previous prime is 55450093. The next prime is 55450127. The reversal of 55450105 is 50105455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55450105 - 215 = 55417337 is a prime.

It is a super-2 number, since 2×554501052 = 6149428289022050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55450105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43027 + ... + 44296.

It is an arithmetic number, because the mean of its divisors is an integer number (8383104).

Almost surely, 255450105 is an apocalyptic number.

It is an amenable number.

55450105 is a deficient number, since it is larger than the sum of its proper divisors (11614727).

55450105 is a wasteful number, since it uses less digits than its factorization.

55450105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87455.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55450105 is about 7446.4827267644. The cubic root of 55450105 is about 381.3298397693.

It can be divided in two parts, 55450 and 105, that added together give a palindrome (55555).

The spelling of 55450105 in words is "fifty-five million, four hundred fifty thousand, one hundred five".

Divisors: 1 5 127 635 87323 436615 11090021 55450105