56610637 has 2 divisors, whose sum is σ = 56610638. Its totient is φ = 56610636.

The previous prime is 56610577. The next prime is 56610647. The reversal of 56610637 is 73601665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37197801 + 19412836 = 6099^2 + 4406^2 .

It is a cyclic number.

It is not a de Polignac number, because 56610637 - 2⁷ = 56610509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56610647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28305318 + 28305319.

It is an arithmetic number, because the mean of its divisors is an integer number (28305319).

Almost surely, 2^56610637 is an apocalyptic number.

It is an amenable number.

56610637 is a deficient number, since it is larger than the sum of its proper divisors (1).

56610637 is an equidigital number, since it uses as much as digits as its factorization.

56610637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56610637 is about 7524.0040536938. The cubic root of 56610637 is about 383.9718155131.

The spelling of 56610637 in words is "fifty-six million, six hundred ten thousand, six hundred thirty-seven".