56580317077 has 2 divisors, whose sum is σ = 56580317078. Its totient is φ = 56580317076.

The previous prime is 56580317063. The next prime is 56580317117. The reversal of 56580317077 is 77071308565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46258976241 + 10321340836 = 215079^2 + 101594^2 .

It is a cyclic number.

It is not a de Polignac number, because 56580317077 - 2¹⁵ = 56580284309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56580317077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56580317477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28290158538 + 28290158539.

It is an arithmetic number, because the mean of its divisors is an integer number (28290158539).

Almost surely, 2^56580317077 is an apocalyptic number.

It is an amenable number.

56580317077 is a deficient number, since it is larger than the sum of its proper divisors (1).

56580317077 is an equidigital number, since it uses as much as digits as its factorization.

56580317077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 56580317077 in words is "fifty-six billion, five hundred eighty million, three hundred seventeen thousand, seventy-seven".