57056004 has 18 divisors (see below), whose sum is σ = 144224990. Its totient is φ = 19018656.

The previous prime is 57055991. The next prime is 57056017. The reversal of 57056004 is 40065075.

57056004 is a `hidden beast` number, since 57 + 0 + 5 + 600 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (57055991) and next prime (57056017).

It can be written as a sum of positive squares in only one way, i.e., 51151104 + 5904900 = 7152^2 + 2430^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 792409 + ... + 792480.

Almost surely, 2^57056004 is an apocalyptic number.

It is an amenable number.

57056004 is an abundant number, since it is smaller than the sum of its proper divisors (87168986).

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

57056004 is a wasteful number, since it uses less digits than its factorization.

57056004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584899 (or 1584894 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 57056004 is about 7553.5424801877. The cubic root of 57056004 is about 384.9761136583.

The spelling of 57056004 in words is "fifty-seven million, fifty-six thousand, four".