57023564 has 24 divisors (see below), whose sum is σ = 107719248. Its totient is φ = 26256960.

The previous prime is 57023563. The next prime is 57023567. The reversal of 57023564 is 46532075.

It is a self number, because there is not a number n which added to its sum of digits gives 57023564.

It is not an unprimeable number, because it can be changed into a prime (57023563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27119 + ... + 29145.

It is an arithmetic number, because the mean of its divisors is an integer number (4488302).

Almost surely, 2^57023564 is an apocalyptic number.

It is an amenable number.

57023564 is a deficient number, since it is larger than the sum of its proper divisors (50695684).

57023564 is a wasteful number, since it uses less digits than its factorization.

57023564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 57023564 is about 7551.3948380415. The cubic root of 57023564 is about 384.9031386171.

The spelling of 57023564 in words is "fifty-seven million, twenty-three thousand, five hundred sixty-four".