557817423 has 16 divisors (see below), whose sum is σ = 762671616. Its totient is φ = 362439360.

The previous prime is 557817391. The next prime is 557817427. The reversal of 557817423 is 324718755.

It is not a de Polignac number, because 557817423 - 2⁵ = 557817391 is a prime.

It is a super-2 number, since 2×557817423² = 622320554804721858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557817427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173436 + ... + 176622.

It is an arithmetic number, because the mean of its divisors is an integer number (47666976).

Almost surely, 2^557817423 is an apocalyptic number.

557817423 is a deficient number, since it is larger than the sum of its proper divisors (204854193).

557817423 is a wasteful number, since it uses less digits than its factorization.

557817423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654.

The product of its digits is 235200, while the sum is 42.

The square root of 557817423 is about 23618.1587555000. The cubic root of 557817423 is about 823.1848297492.

The spelling of 557817423 in words is "five hundred fifty-seven million, eight hundred seventeen thousand, four hundred twenty-three".