56359758557 has 2 divisors, whose sum is σ = 56359758558. Its totient is φ = 56359758556.

The previous prime is 56359758541. The next prime is 56359758617. The reversal of 56359758557 is 75585795365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42242991961 + 14116766596 = 205531^2 + 118814^2 .

It is a cyclic number.

It is not a de Polignac number, because 56359758557 - 2⁴ = 56359758541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56359758493 and 56359758502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56359758517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28179879278 + 28179879279.

It is an arithmetic number, because the mean of its divisors is an integer number (28179879279).

Almost surely, 2^56359758557 is an apocalyptic number.

It is an amenable number.

56359758557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56359758557 is an equidigital number, since it uses as much as digits as its factorization.

56359758557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450000, while the sum is 65.

The spelling of 56359758557 in words is "fifty-six billion, three hundred fifty-nine million, seven hundred fifty-eight thousand, five hundred fifty-seven".