557384868 has 24 divisors (see below), whose sum is σ = 1445072160. Its totient is φ = 185794920.

The previous prime is 557384851. The next prime is 557384869. The reversal of 557384868 is 868483755.

557384868 is a `hidden beast` number, since 5 + 573 + 8 + 4 + 8 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (557384869) 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, 2580378 + ... + 2580593.

It is an arithmetic number, because the mean of its divisors is an integer number (60211340).

Almost surely, 2^557384868 is an apocalyptic number.

It is an amenable number.

557384868 is an abundant number, since it is smaller than the sum of its proper divisors (887687292).

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

557384868 is a wasteful number, since it uses less digits than its factorization.

557384868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160984 (or 5160976 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 557384868 is about 23608.9997246813. Note that the first 3 decimals coincide. The cubic root of 557384868 is about 822.9719973917.

It can be divided in two parts, 55738 and 4868, that added together give a palindrome (60606).

The spelling of 557384868 in words is "five hundred fifty-seven million, three hundred eighty-four thousand, eight hundred sixty-eight".