557717772 has 12 divisors (see below), whose sum is σ = 1301341496. Its totient is φ = 185905920.

The previous prime is 557717723. The next prime is 557717779. The reversal of 557717772 is 277717755.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×557717772² = 622098226409287968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557717779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23238229 + ... + 23238252.

Almost surely, 2^557717772 is an apocalyptic number.

It is an amenable number.

557717772 is an abundant number, since it is smaller than the sum of its proper divisors (743623724).

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

557717772 is a wasteful number, since it uses less digits than its factorization.

557717772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46476488 (or 46476486 counting only the distinct ones).

The product of its digits is 840350, while the sum is 48.

The square root of 557717772 is about 23616.0490345019. The cubic root of 557717772 is about 823.1358076897.

The spelling of 557717772 in words is "five hundred fifty-seven million, seven hundred seventeen thousand, seven hundred seventy-two".