557896872 has 64 divisors (see below), whose sum is σ = 1504661760. Its totient is φ = 171360000.

The previous prime is 557896853. The next prime is 557896883. The reversal of 557896872 is 278698755.

It is a happy number.

It is a super-2 number, since 2×557896872² = 622497839574768768, which contains 22 as substring.

Its product of digits (8467200) is a multiple of the sum of its prime divisors (3150).

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, 233122 + ... + 235502.

It is an arithmetic number, because the mean of its divisors is an integer number (23510340).

Almost surely, 2^557896872 is an apocalyptic number.

557896872 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557896872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752330880).

557896872 is an abundant number, since it is smaller than the sum of its proper divisors (946764888).

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

557896872 is a wasteful number, since it uses less digits than its factorization.

557896872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154 (or 3150 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 57.

The square root of 557896872 is about 23619.8406429849. The cubic root of 557896872 is about 823.2239095055.

The spelling of 557896872 in words is "five hundred fifty-seven million, eight hundred ninety-six thousand, eight hundred seventy-two".