56512037 has 2 divisors, whose sum is σ = 56512038. Its totient is φ = 56512036.

The previous prime is 56512013. The next prime is 56512139. The reversal of 56512037 is 73021565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55145476 + 1366561 = 7426^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 56512037 - 2¹⁴ = 56495653 is a prime.

It is a super-2 number, since 2×56512037² = 6387220651778738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56512537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256018 + 28256019.

It is an arithmetic number, because the mean of its divisors is an integer number (28256019).

Almost surely, 2^56512037 is an apocalyptic number.

It is an amenable number.

56512037 is a deficient number, since it is larger than the sum of its proper divisors (1).

56512037 is an equidigital number, since it uses as much as digits as its factorization.

56512037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 56512037 is about 7517.4488358751. The cubic root of 56512037 is about 383.7487618927.

The spelling of 56512037 in words is "fifty-six million, five hundred twelve thousand, thirty-seven".