56664057 has 24 divisors (see below), whose sum is σ = 80494336. Its totient is φ = 35429184.

The previous prime is 56664053. The next prime is 56664071. The reversal of 56664057 is 75046665.

It is not a de Polignac number, because 56664057 - 2² = 56664053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56664053) 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, 93048 + ... + 93654.

Almost surely, 2^56664057 is an apocalyptic number.

It is an amenable number.

56664057 is a deficient number, since it is larger than the sum of its proper divisors (23830279).

56664057 is a wasteful number, since it uses less digits than its factorization.

56664057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 56664057 is about 7527.5531881216. The cubic root of 56664057 is about 384.0925544587.

The spelling of 56664057 in words is "fifty-six million, six hundred sixty-four thousand, fifty-seven".