557051537657 has 2 divisors, whose sum is σ = 557051537658. Its totient is φ = 557051537656.

The previous prime is 557051537617. The next prime is 557051537717. The reversal of 557051537657 is 756735150755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517645714576 + 39405823081 = 719476^2 + 198509^2 .

It is a cyclic number.

It is not a de Polignac number, because 557051537657 - 2⁸ = 557051537401 is a prime.

It is not a weakly prime, because it can be changed into another prime (557051537617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278525768828 + 278525768829.

It is an arithmetic number, because the mean of its divisors is an integer number (278525768829).

Almost surely, 2^557051537657 is an apocalyptic number.

It is an amenable number.

557051537657 is a deficient number, since it is larger than the sum of its proper divisors (1).

557051537657 is an equidigital number, since it uses as much as digits as its factorization.

557051537657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19293750, while the sum is 56.

The spelling of 557051537657 in words is "five hundred fifty-seven billion, fifty-one million, five hundred thirty-seven thousand, six hundred fifty-seven".