56845131 has 16 divisors (see below), whose sum is σ = 91180800. Its totient is φ = 30773088.

The previous prime is 56845099. The next prime is 56845157. The reversal of 56845131 is 13154865.

It is not a de Polignac number, because 56845131 - 2⁵ = 56845099 is a prime.

It is a super-2 number, since 2×56845131² = 6462737836814322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56845092 and 56845101.

It is not an unprimeable number, because it can be changed into a prime (56845181) 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, 70836 + ... + 71633.

It is an arithmetic number, because the mean of its divisors is an integer number (5698800).

Almost surely, 2^56845131 is an apocalyptic number.

56845131 is a deficient number, since it is larger than the sum of its proper divisors (34335669).

56845131 is a wasteful number, since it uses less digits than its factorization.

56845131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142498.

The product of its digits is 14400, while the sum is 33.

The square root of 56845131 is about 7539.5710090164. The cubic root of 56845131 is about 384.5012510648.

Adding to 56845131 its reverse (13154865), we get a palindrome (69999996).

The spelling of 56845131 in words is "fifty-six million, eight hundred forty-five thousand, one hundred thirty-one".