557425920 has 144 divisors (see below), whose sum is σ = 1885222080. Its totient is φ = 139886592.

The previous prime is 557425909. The next prime is 557425943. The reversal of 557425920 is 29524755.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61011 + ... + 69549.

It is an arithmetic number, because the mean of its divisors is an integer number (13091820).

Almost surely, 2^557425920 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 557425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942611040).

557425920 is an abundant number, since it is smaller than the sum of its proper divisors (1327796160).

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

557425920 is a wasteful number, since it uses less digits than its factorization.

557425920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580 (or 8566 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 557425920 is about 23609.8691228901. The cubic root of 557425920 is about 822.9922011557.

The spelling of 557425920 in words is "five hundred fifty-seven million, four hundred twenty-five thousand, nine hundred twenty".