57569664 has 32 divisors (see below), whose sum is σ = 152920440. Its totient is φ = 19189760.

The previous prime is 57569657. The next prime is 57569671. The reversal of 57569664 is 46696575.

It is an interprime number because it is at equal distance from previous prime (57569657) and next prime (57569671).

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

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 74577 + ... + 75344.

Almost surely, 2^57569664 is an apocalyptic number.

It is an amenable number.

57569664 is an abundant number, since it is smaller than the sum of its proper divisors (95350776).

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

57569664 is a wasteful number, since it uses less digits than its factorization.

57569664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149938 (or 149926 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 57569664 is about 7587.4675617099. The cubic root of 57569664 is about 386.1279431262.

The spelling of 57569664 in words is "fifty-seven million, five hundred sixty-nine thousand, six hundred sixty-four".