557399752 has 32 divisors (see below), whose sum is σ = 1286308800. Its totient is φ = 220509504.

The previous prime is 557399737. The next prime is 557399753. The reversal of 557399752 is 257993755.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 557399752.

It is not an unprimeable number, because it can be changed into a prime (557399753) 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, 382102 + ... + 383557.

It is an arithmetic number, because the mean of its divisors is an integer number (40197150).

Almost surely, 2^557399752 is an apocalyptic number.

557399752 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

557399752 is an abundant number, since it is smaller than the sum of its proper divisors (728909048).

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

557399752 is a wasteful number, since it uses less digits than its factorization.

557399752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765685 (or 765681 counting only the distinct ones).

The product of its digits is 2976750, while the sum is 52.

The square root of 557399752 is about 23609.3149413531. The cubic root of 557399752 is about 822.9793226750.

The spelling of 557399752 in words is "five hundred fifty-seven million, three hundred ninety-nine thousand, seven hundred fifty-two".