557555472 has 60 divisors (see below), whose sum is σ = 1569470604. Its totient is φ = 184769280.

The previous prime is 557555461. The next prime is 557555497. The reversal of 557555472 is 274555755.

557555472 is a `hidden beast` number, since 5 + 57 + 55 + 547 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 432473616 + 125081856 = 20796^2 + 11184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13722 + ... + 36102.

Almost surely, 2^557555472 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 557555472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784735302).

557555472 is an abundant number, since it is smaller than the sum of its proper divisors (1011915132).

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

557555472 is a wasteful number, since it uses less digits than its factorization.

557555472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568 (or 22559 counting only the distinct ones).

The product of its digits is 1225000, while the sum is 45.

The square root of 557555472 is about 23612.6125619339. The cubic root of 557555472 is about 823.0559537388.

The spelling of 557555472 in words is "five hundred fifty-seven million, five hundred fifty-five thousand, four hundred seventy-two".