56752332557 has 2 divisors, whose sum is σ = 56752332558. Its totient is φ = 56752332556.

The previous prime is 56752332499. The next prime is 56752332563. The reversal of 56752332557 is 75523325765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45207689641 + 11544642916 = 212621^2 + 107446^2 .

It is a cyclic number.

It is not a de Polignac number, because 56752332557 - 2²⁴ = 56735555341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56752332577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28376166278 + 28376166279.

It is an arithmetic number, because the mean of its divisors is an integer number (28376166279).

Almost surely, 2^56752332557 is an apocalyptic number.

It is an amenable number.

56752332557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56752332557 is an equidigital number, since it uses as much as digits as its factorization.

56752332557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615000, while the sum is 50.

The spelling of 56752332557 in words is "fifty-six billion, seven hundred fifty-two million, three hundred thirty-two thousand, five hundred fifty-seven".