557131531 has 8 divisors (see below), whose sum is σ = 643531824. Its totient is φ = 476689920.

The previous prime is 557131517. The next prime is 557131567. The reversal of 557131531 is 135131755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557131531 - 2⁷ = 557131403 is a prime.

It is a super-2 number, since 2×557131531² = 620791085668807922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557131493 and 557131502.

It is not an unprimeable number, because it can be changed into a prime (557131031) 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 in 7 ways as a sum of consecutive naturals, for example, 1489470 + ... + 1489843.

It is an arithmetic number, because the mean of its divisors is an integer number (80441478).

Almost surely, 2^557131531 is an apocalyptic number.

557131531 is a deficient number, since it is larger than the sum of its proper divisors (86400293).

557131531 is a wasteful number, since it uses less digits than its factorization.

557131531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979341.

The product of its digits is 7875, while the sum is 31.

The square root of 557131531 is about 23603.6338515916. The cubic root of 557131531 is about 822.8472954944.

The spelling of 557131531 in words is "five hundred fifty-seven million, one hundred thirty-one thousand, five hundred thirty-one".