57313664 has 32 divisors (see below), whose sum is σ = 120900600. Its totient is φ = 26970112.

The previous prime is 57313651. The next prime is 57313673. The reversal of 57313664 is 46631375.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×57313664² = 6569712162209792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10994 + ... + 15345.

Almost surely, 2^57313664 is an apocalyptic number.

It is an amenable number.

57313664 is an abundant number, since it is smaller than the sum of its proper divisors (63586936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57313664 is a wasteful number, since it uses less digits than its factorization.

57313664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26370 (or 26358 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 57313664 is about 7570.5788418060. The cubic root of 57313664 is about 385.5547498309.

The spelling of 57313664 in words is "fifty-seven million, three hundred thirteen thousand, six hundred sixty-four".