57656313 has 64 divisors (see below), whose sum is σ = 102009600. Its totient is φ = 31726080.

The previous prime is 57656309. The next prime is 57656327. The reversal of 57656313 is 31365675.

It is a happy number.

57656313 is a `hidden beast` number, since 576 + 56 + 31 + 3 = 666.

It is not a de Polignac number, because 57656313 - 2² = 57656309 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57656303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 420781 + ... + 420917.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 2^57656313 is an apocalyptic number.

It is an amenable number.

57656313 is a deficient number, since it is larger than the sum of its proper divisors (44353287).

57656313 is a wasteful number, since it uses less digits than its factorization.

57656313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 273 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 57656313 is about 7593.1754227069. The cubic root of 57656313 is about 386.3215684142.

The spelling of 57656313 in words is "fifty-seven million, six hundred fifty-six thousand, three hundred thirteen".