557974391 has 8 divisors (see below), whose sum is σ = 636242544. Its totient is φ = 484755840.

The previous prime is 557974337. The next prime is 557974421. The reversal of 557974391 is 193479755.

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 557974391 - 2¹⁸ = 557712247 is a prime.

It is a super-2 number, since 2×557974391² = 622670842023641762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557974331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262165 + ... + 1262606.

It is an arithmetic number, because the mean of its divisors is an integer number (79530318).

Almost surely, 2^557974391 is an apocalyptic number.

557974391 is a deficient number, since it is larger than the sum of its proper divisors (78268153).

557974391 is a wasteful number, since it uses less digits than its factorization.

557974391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524801.

The product of its digits is 1190700, while the sum is 50.

The square root of 557974391 is about 23621.4815581072. The cubic root of 557974391 is about 823.2620363481.

The spelling of 557974391 in words is "five hundred fifty-seven million, nine hundred seventy-four thousand, three hundred ninety-one".