557943568 has 80 divisors (see below), whose sum is σ = 1388411136. Its totient is φ = 211115520.

The previous prime is 557943563. The next prime is 557943571. The reversal of 557943568 is 865349755.

It is a super-2 number, since 2×557943568² = 622602050145141248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (557943563) 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, 25158 + ... + 41818.

Almost surely, 2^557943568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557943568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694205568).

557943568 is an abundant number, since it is smaller than the sum of its proper divisors (830467568).

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

557943568 is a wasteful number, since it uses less digits than its factorization.

557943568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712 (or 16706 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 52.

The square root of 557943568 is about 23620.8291133059. The cubic root of 557943568 is about 823.2468768274.

The spelling of 557943568 in words is "five hundred fifty-seven million, nine hundred forty-three thousand, five hundred sixty-eight".