557504657 has 2 divisors, whose sum is σ = 557504658. Its totient is φ = 557504656.

The previous prime is 557504653. The next prime is 557504677. The reversal of 557504657 is 756405755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555120721 + 2383936 = 23561^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 557504657 - 2² = 557504653 is a prime.

It is a super-2 number, since 2×557504657² = 621622885153375298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557504653) 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, 278752328 + 278752329.

It is an arithmetic number, because the mean of its divisors is an integer number (278752329).

Almost surely, 2^557504657 is an apocalyptic number.

It is an amenable number.

557504657 is a deficient number, since it is larger than the sum of its proper divisors (1).

557504657 is an equidigital number, since it uses as much as digits as its factorization.

557504657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 735000, while the sum is 44.

The square root of 557504657 is about 23611.5365234878. The cubic root of 557504657 is about 823.0309488373.

The spelling of 557504657 in words is "five hundred fifty-seven million, five hundred four thousand, six hundred fifty-seven".