557316023 has 4 divisors (see below), whose sum is σ = 607981128. Its totient is φ = 506650920.

The previous prime is 557315977. The next prime is 557316061. The reversal of 557316023 is 320613755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557316023 - 2¹⁰ = 557314999 is a prime.

It is a super-2 number, since 2×557316023² = 621202298985073058, 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 (557316073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25332536 + ... + 25332557.

It is an arithmetic number, because the mean of its divisors is an integer number (151995282).

Almost surely, 2^557316023 is an apocalyptic number.

557316023 is a deficient number, since it is larger than the sum of its proper divisors (50665105).

557316023 is a wasteful number, since it uses less digits than its factorization.

557316023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50665104.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 557316023 is about 23607.5416551576. The cubic root of 557316023 is about 822.9381130608.

Adding to 557316023 its reverse (320613755), we get a palindrome (877929778).

The spelling of 557316023 in words is "five hundred fifty-seven million, three hundred sixteen thousand, twenty-three".