57057864 has 16 divisors (see below), whose sum is σ = 142644720. Its totient is φ = 19019280.

The previous prime is 57057853. The next prime is 57057883. The reversal of 57057864 is 46875075.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188682 + ... + 1188729.

It is an arithmetic number, because the mean of its divisors is an integer number (8915295).

Almost surely, 2^57057864 is an apocalyptic number.

It is an amenable number.

57057864 is an abundant number, since it is smaller than the sum of its proper divisors (85586856).

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

57057864 is a wasteful number, since it uses less digits than its factorization.

57057864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377420 (or 2377416 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 57057864 is about 7553.6656002235. The cubic root of 57057864 is about 384.9802969621.

The spelling of 57057864 in words is "fifty-seven million, fifty-seven thousand, eight hundred sixty-four".