56490938361 has 24 divisors (see below), whose sum is σ = 95863412736. Its totient is φ = 31603321440.

The previous prime is 56490938299. The next prime is 56490938363. The reversal of 56490938361 is 16383909465.

56490938361 is a `hidden beast` number, since 5 + 6 + 490 + 93 + 8 + 3 + 61 = 666.

It is not a de Polignac number, because 56490938361 - 2³⁰ = 55417196537 is a prime.

It is a super-2 number, since 2×56490938361² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56490938298 and 56490938307.

It is not an unprimeable number, because it can be changed into a prime (56490938363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21945465 + ... + 21948038.

It is an arithmetic number, because the mean of its divisors is an integer number (3994308864).

Almost surely, 2^56490938361 is an apocalyptic number.

It is an amenable number.

56490938361 is a deficient number, since it is larger than the sum of its proper divisors (39372474375).

56490938361 is a wasteful number, since it uses less digits than its factorization.

56490938361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43893533 (or 43893530 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 56490938361 in words is "fifty-six billion, four hundred ninety million, nine hundred thirty-eight thousand, three hundred sixty-one".