57000056 has 16 divisors (see below), whose sum is σ = 107005200. Its totient is φ = 28465344.

The previous prime is 57000037. The next prime is 57000059. The reversal of 57000056 is 65000075.

It is a junction number, because it is equal to n+sod(n) for n = 56999995 and 57000040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3476 + ... + 11228.

It is an arithmetic number, because the mean of its divisors is an integer number (6687825).

Almost surely, 2^57000056 is an apocalyptic number.

It is an amenable number.

57000056 is a deficient number, since it is larger than the sum of its proper divisors (50005144).

57000056 is a wasteful number, since it uses less digits than its factorization.

57000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678 (or 8674 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 57000056 is about 7549.8381439604. The cubic root of 57000056 is about 384.8502391604.

The spelling of 57000056 in words is "fifty-seven million, fifty-six", and thus it is an aban number and an uban number.