56413657 has 2 divisors, whose sum is σ = 56413658. Its totient is φ = 56413656.

The previous prime is 56413631. The next prime is 56413661. The reversal of 56413657 is 75631465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50537881 + 5875776 = 7109^2 + 2424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56413657 is a prime.

It is a super-2 number, since 2×56413657² = 6365001392227298, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56413627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28206828 + 28206829.

It is an arithmetic number, because the mean of its divisors is an integer number (28206829).

Almost surely, 2^56413657 is an apocalyptic number.

It is an amenable number.

56413657 is a deficient number, since it is larger than the sum of its proper divisors (1).

56413657 is an equidigital number, since it uses as much as digits as its factorization.

56413657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 56413657 is about 7510.9025423048. The cubic root of 56413657 is about 383.5259472253.

The spelling of 56413657 in words is "fifty-six million, four hundred thirteen thousand, six hundred fifty-seven".