57565641 has 24 divisors (see below), whose sum is σ = 90433920. Its totient is φ = 32471712.

The previous prime is 57565633. The next prime is 57565643. The reversal of 57565641 is 14656575.

It is not a de Polignac number, because 57565641 - 2³ = 57565633 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57565641.

It is not an unprimeable number, because it can be changed into a prime (57565643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9135 + ... + 14091.

It is an arithmetic number, because the mean of its divisors is an integer number (3768080).

Almost surely, 2^57565641 is an apocalyptic number.

It is an amenable number.

57565641 is a deficient number, since it is larger than the sum of its proper divisors (32868279).

57565641 is a wasteful number, since it uses less digits than its factorization.

57565641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053 (or 5046 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 57565641 is about 7587.2024488608. The cubic root of 57565641 is about 386.1189486385.

The spelling of 57565641 in words is "fifty-seven million, five hundred sixty-five thousand, six hundred forty-one".