56630837 has 2 divisors, whose sum is σ = 56630838. Its totient is φ = 56630836.

The previous prime is 56630813. The next prime is 56630843. The reversal of 56630837 is 73803665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54302161 + 2328676 = 7369^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 56630837 - 2¹² = 56626741 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56630837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56630857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28315418 + 28315419.

It is an arithmetic number, because the mean of its divisors is an integer number (28315419).

Almost surely, 2^56630837 is an apocalyptic number.

It is an amenable number.

56630837 is a deficient number, since it is larger than the sum of its proper divisors (1).

56630837 is an equidigital number, since it uses as much as digits as its factorization.

56630837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 56630837 is about 7525.3463043238. The cubic root of 56630837 is about 384.0174801251.

The spelling of 56630837 in words is "fifty-six million, six hundred thirty thousand, eight hundred thirty-seven".