56137597 has 2 divisors, whose sum is σ = 56137598. Its totient is φ = 56137596.

The previous prime is 56137589. The next prime is 56137633. The reversal of 56137597 is 79573165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 1879641 = 7366^2 + 1371^2 .

It is a cyclic number.

It is not a de Polignac number, because 56137597 - 2³ = 56137589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56137537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28068798 + 28068799.

It is an arithmetic number, because the mean of its divisors is an integer number (28068799).

Almost surely, 2^56137597 is an apocalyptic number.

It is an amenable number.

56137597 is a deficient number, since it is larger than the sum of its proper divisors (1).

56137597 is an equidigital number, since it uses as much as digits as its factorization.

56137597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 43.

The square root of 56137597 is about 7492.5027193856. The cubic root of 56137597 is about 382.8993297759.

The spelling of 56137597 in words is "fifty-six million, one hundred thirty-seven thousand, five hundred ninety-seven".