56801252537 has 2 divisors, whose sum is σ = 56801252538. Its totient is φ = 56801252536.

The previous prime is 56801252527. The next prime is 56801252597. The reversal of 56801252537 is 73525210865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49952697001 + 6848555536 = 223501^2 + 82756^2 .

It is a cyclic number.

It is not a de Polignac number, because 56801252537 - 2⁸ = 56801252281 is a prime.

It is not a weakly prime, because it can be changed into another prime (56801252527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28400626268 + 28400626269.

It is an arithmetic number, because the mean of its divisors is an integer number (28400626269).

Almost surely, 2^56801252537 is an apocalyptic number.

It is an amenable number.

56801252537 is a deficient number, since it is larger than the sum of its proper divisors (1).

56801252537 is an equidigital number, since it uses as much as digits as its factorization.

56801252537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 56801252537 in words is "fifty-six billion, eight hundred one million, two hundred fifty-two thousand, five hundred thirty-seven".