557591394 has 16 divisors (see below), whose sum is σ = 1116804960. Its totient is φ = 185593440.

The previous prime is 557591339. The next prime is 557591399. The reversal of 557591394 is 493195755.

It is not an unprimeable number, because it can be changed into a prime (557591399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63099 + ... + 71390.

It is an arithmetic number, because the mean of its divisors is an integer number (69800310).

Almost surely, 2^557591394 is an apocalyptic number.

557591394 is an abundant number, since it is smaller than the sum of its proper divisors (559213566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557591394 is a wasteful number, since it uses less digits than its factorization.

557591394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135185.

The product of its digits is 850500, while the sum is 48.

The square root of 557591394 is about 23613.3732024885. The cubic root of 557591394 is about 823.0736292183.

It can be divided in two parts, 5575 and 91394, that added together give a palindrome (96969).

The spelling of 557591394 in words is "five hundred fifty-seven million, five hundred ninety-one thousand, three hundred ninety-four".