556365992 has 96 divisors (see below), whose sum is σ = 1337767200. Its totient is φ = 214897536.

The previous prime is 556365989. The next prime is 556366007. The reversal of 556365992 is 299563655.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 556365992.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217859 + ... + 220397.

It is an arithmetic number, because the mean of its divisors is an integer number (13935075).

Almost surely, 2^556365992 is an apocalyptic number.

556365992 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 556365992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668883600).

556365992 is an abundant number, since it is smaller than the sum of its proper divisors (781401208).

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

556365992 is a wasteful number, since it uses less digits than its factorization.

556365992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2604 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 50.

The square root of 556365992 is about 23587.4117274448. The cubic root of 556365992 is about 822.4702388507.

The spelling of 556365992 in words is "five hundred fifty-six million, three hundred sixty-five thousand, nine hundred ninety-two".