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55990941 = 3591372309
BaseRepresentation
bin1101010110010…
…1101010011101
310220100122010120
43111211222131
5103313202231
65320025153
71246625616
oct325455235
9126318116
1055990941
1129672906
12169021b9
13b7a5246
147616c0d
154daed96
hex3565a9d

55990941 has 16 divisors (see below), whose sum is σ = 76507200. Its totient is φ = 36411008.

The previous prime is 55990939. The next prime is 55990943. The reversal of 55990941 is 14909955.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55990939) and next prime (55990943).

It is a cyclic number.

It is not a de Polignac number, because 55990941 - 21 = 55990939 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55990893 and 55990902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55990943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23095 + ... + 25403.

It is an arithmetic number, because the mean of its divisors is an integer number (4781700).

Almost surely, 255990941 is an apocalyptic number.

It is an amenable number.

55990941 is a deficient number, since it is larger than the sum of its proper divisors (20516259).

55990941 is a wasteful number, since it uses less digits than its factorization.

55990941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 55990941 is about 7482.7094691696. The cubic root of 55990941 is about 382.5656053901.

The spelling of 55990941 in words is "fifty-five million, nine hundred ninety thousand, nine hundred forty-one".

Divisors: 1 3 59 137 177 411 2309 6927 8083 24249 136231 316333 408693 948999 18663647 55990941