557424 has 90 divisors (see below), whose sum is σ = 1837680. Its totient is φ = 157248.

The previous prime is 557423. The next prime is 557443. The reversal of 557424 is 424755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7017 + ... + 7095.

2⁵⁵⁷⁴²⁴ 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 557424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918840).

557424 is an abundant number, since it is smaller than the sum of its proper divisors (1280256).

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

557424 is a wasteful number, since it uses less digits than its factorization.

557424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 91 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 557424 is about 746.6083310545. The cubic root of 557424 is about 82.2991256249.

The spelling of 557424 in words is "five hundred fifty-seven thousand, four hundred twenty-four".