56565037 has 2 divisors, whose sum is σ = 56565038. Its totient is φ = 56565036.

The previous prime is 56565031. The next prime is 56565079. The reversal of 56565037 is 73056565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33802596 + 22762441 = 5814^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 56565037 - 2³ = 56565029 is a prime.

It is a super-2 number, since 2×56565037² = 6399206821622738, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56564987 and 56565005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56565031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282518 + 28282519.

It is an arithmetic number, because the mean of its divisors is an integer number (28282519).

Almost surely, 2^56565037 is an apocalyptic number.

It is an amenable number.

56565037 is a deficient number, since it is larger than the sum of its proper divisors (1).

56565037 is an equidigital number, since it uses as much as digits as its factorization.

56565037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 56565037 is about 7520.9731418215. The cubic root of 56565037 is about 383.8686910885.

The spelling of 56565037 in words is "fifty-six million, five hundred sixty-five thousand, thirty-seven".