557157312 has 56 divisors (see below), whose sum is σ = 1637944400. Its totient is φ = 185718528.

The previous prime is 557157281. The next prime is 557157319. The reversal of 557157312 is 213751755.

It is a happy number.

557157312 is a `hidden beast` number, since 5 + 5 + 71 + 573 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557157319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159487 + ... + 162942.

Almost surely, 2^557157312 is an apocalyptic number.

It is an amenable number.

557157312 is an abundant number, since it is smaller than the sum of its proper divisors (1080787088).

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

557157312 is a wasteful number, since it uses less digits than its factorization.

557157312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322450 (or 322434 counting only the distinct ones).

The product of its digits is 36750, while the sum is 36.

The square root of 557157312 is about 23604.1799688106. The cubic root of 557157312 is about 822.8599875894.

The spelling of 557157312 in words is "five hundred fifty-seven million, one hundred fifty-seven thousand, three hundred twelve".