56937544693 has 2 divisors, whose sum is σ = 56937544694. Its totient is φ = 56937544692.

The previous prime is 56937544681. The next prime is 56937544747. The reversal of 56937544693 is 39644573965.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52954293924 + 3983250769 = 230118^2 + 63113^2 .

It is a cyclic number.

It is not a de Polignac number, because 56937544693 - 2²⁵ = 56903990261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56937544193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28468772346 + 28468772347.

It is an arithmetic number, because the mean of its divisors is an integer number (28468772347).

Almost surely, 2^56937544693 is an apocalyptic number.

It is an amenable number.

56937544693 is a deficient number, since it is larger than the sum of its proper divisors (1).

56937544693 is an equidigital number, since it uses as much as digits as its factorization.

56937544693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73483200, while the sum is 61.

The spelling of 56937544693 in words is "fifty-six billion, nine hundred thirty-seven million, five hundred forty-four thousand, six hundred ninety-three".