557609472 has 240 divisors, whose sum is σ = 1876754880. Its totient is φ = 156082176.

The previous prime is 557609453. The next prime is 557609501. The reversal of 557609472 is 274906755.

557609472 is a `hidden beast` number, since 5 + 576 + 0 + 9 + 4 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1902958 + ... + 1903250.

It is an arithmetic number, because the mean of its divisors is an integer number (7819812).

Almost surely, 2^557609472 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 557609472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938377440).

557609472 is an abundant number, since it is smaller than the sum of its proper divisors (1319145408).

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

557609472 is a wasteful number, since it uses less digits than its factorization.

557609472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 557609472 is about 23613.7559909473. The cubic root of 557609472 is about 823.0825242410.

The spelling of 557609472 in words is "five hundred fifty-seven million, six hundred nine thousand, four hundred seventy-two".