56875631 has 2 divisors, whose sum is σ = 56875632. Its totient is φ = 56875630.

The previous prime is 56875613. The next prime is 56875661. The reversal of 56875631 is 13657865.

Together with previous prime (56875613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56875631 - 2²² = 52681327 is a prime.

It is a super-2 number, since 2×56875631² = 6469674803296322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56875601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28437815 + 28437816.

It is an arithmetic number, because the mean of its divisors is an integer number (28437816).

Almost surely, 2^56875631 is an apocalyptic number.

56875631 is a deficient number, since it is larger than the sum of its proper divisors (1).

56875631 is an equidigital number, since it uses as much as digits as its factorization.

56875631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The square root of 56875631 is about 7541.5933992758. The cubic root of 56875631 is about 384.5700062432.

The spelling of 56875631 in words is "fifty-six million, eight hundred seventy-five thousand, six hundred thirty-one".