557896997 has 12 divisors (see below), whose sum is σ = 652618080. Its totient is φ = 475518456.

The previous prime is 557896967. The next prime is 557897023. The reversal of 557896997 is 799698755.

It is not a de Polignac number, because 557896997 - 2⁸ = 557896741 is a prime.

It is a super-2 number, since 2×557896997² = 622498118523236018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557896957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23033 + ... + 40574.

It is an arithmetic number, because the mean of its divisors is an integer number (54384840).

Almost surely, 2^557896997 is an apocalyptic number.

It is an amenable number.

557896997 is a deficient number, since it is larger than the sum of its proper divisors (94721083).

557896997 is a wasteful number, since it uses less digits than its factorization.

557896997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63800 (or 63793 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 65.

The square root of 557896997 is about 23619.8432890652. The cubic root of 557896997 is about 823.2239709882.

The spelling of 557896997 in words is "five hundred fifty-seven million, eight hundred ninety-six thousand, nine hundred ninety-seven".