57564677 has 2 divisors, whose sum is σ = 57564678. Its totient is φ = 57564676.

The previous prime is 57564667. The next prime is 57564679. The reversal of 57564677 is 77646575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54626881 + 2937796 = 7391^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 57564677 - 2⁸ = 57564421 is a prime.

It is a super-2 number, since 2×57564677² = 6627384076228658, which contains 22 as substring.

Together with 57564679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57564679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28782338 + 28782339.

It is an arithmetic number, because the mean of its divisors is an integer number (28782339).

Almost surely, 2^57564677 is an apocalyptic number.

It is an amenable number.

57564677 is a deficient number, since it is larger than the sum of its proper divisors (1).

57564677 is an equidigital number, since it uses as much as digits as its factorization.

57564677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234800, while the sum is 47.

The square root of 57564677 is about 7587.1389205681. The cubic root of 57564677 is about 386.1167932976.

The spelling of 57564677 in words is "fifty-seven million, five hundred sixty-four thousand, six hundred seventy-seven".