557163697 has 2 divisors, whose sum is σ = 557163698. Its totient is φ = 557163696.

The previous prime is 557163647. The next prime is 557163743. The reversal of 557163697 is 796361755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419594256 + 137569441 = 20484^2 + 11729^2 .

It is a cyclic number.

It is not a de Polignac number, because 557163697 - 2²³ = 548775089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 557163697.

It is not a weakly prime, because it can be changed into another prime (557163647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278581848 + 278581849.

It is an arithmetic number, because the mean of its divisors is an integer number (278581849).

Almost surely, 2^557163697 is an apocalyptic number.

It is an amenable number.

557163697 is a deficient number, since it is larger than the sum of its proper divisors (1).

557163697 is an equidigital number, since it uses as much as digits as its factorization.

557163697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 49.

The square root of 557163697 is about 23604.3152198915. The cubic root of 557163697 is about 822.8631308913.

The spelling of 557163697 in words is "five hundred fifty-seven million, one hundred sixty-three thousand, six hundred ninety-seven".