557315387 has 4 divisors (see below), whose sum is σ = 562726320. Its totient is φ = 551904456.

The previous prime is 557315383. The next prime is 557315393. The reversal of 557315387 is 783513755.

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 557315387 - 2² = 557315383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557315383) 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, 2705312 + ... + 2705517.

It is an arithmetic number, because the mean of its divisors is an integer number (140681580).

Almost surely, 2^557315387 is an apocalyptic number.

557315387 is a deficient number, since it is larger than the sum of its proper divisors (5410933).

557315387 is a wasteful number, since it uses less digits than its factorization.

557315387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410932.

The product of its digits is 441000, while the sum is 44.

The square root of 557315387 is about 23607.5281848820. The cubic root of 557315387 is about 822.9378000194.

The spelling of 557315387 in words is "five hundred fifty-seven million, three hundred fifteen thousand, three hundred eighty-seven".