557464321 has 16 divisors (see below), whose sum is σ = 581253120. Its totient is φ = 534275280.

The previous prime is 557464319. The next prime is 557464333. The reversal of 557464321 is 123464755.

It is a cyclic number.

It is not a de Polignac number, because 557464321 - 2¹ = 557464319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557464121) 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, 664020 + ... + 664858.

It is an arithmetic number, because the mean of its divisors is an integer number (36328320).

Almost surely, 2^557464321 is an apocalyptic number.

It is an amenable number.

557464321 is a deficient number, since it is larger than the sum of its proper divisors (23788799).

557464321 is a wasteful number, since it uses less digits than its factorization.

557464321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164.

The product of its digits is 100800, while the sum is 37.

The square root of 557464321 is about 23610.6823493096. The cubic root of 557464321 is about 823.0110993308.

The spelling of 557464321 in words is "five hundred fifty-seven million, four hundred sixty-four thousand, three hundred twenty-one".