56663137 has 2 divisors, whose sum is σ = 56663138. Its totient is φ = 56663136.

The previous prime is 56663093. The next prime is 56663141. The reversal of 56663137 is 73136665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44836416 + 11826721 = 6696^2 + 3439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56663137 is a prime.

It is a super-2 number, since 2×56663137² = 6421422189361538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56663096 and 56663105.

It is not a weakly prime, because it can be changed into another prime (56663177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331568 + 28331569.

It is an arithmetic number, because the mean of its divisors is an integer number (28331569).

Almost surely, 2^56663137 is an apocalyptic number.

It is an amenable number.

56663137 is a deficient number, since it is larger than the sum of its proper divisors (1).

56663137 is an equidigital number, since it uses as much as digits as its factorization.

56663137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 56663137 is about 7527.4920790393. The cubic root of 56663137 is about 384.0904757332.

The spelling of 56663137 in words is "fifty-six million, six hundred sixty-three thousand, one hundred thirty-seven".