556485444 has 24 divisors (see below), whose sum is σ = 1442740320. Its totient is φ = 185495112.

The previous prime is 556485431. The next prime is 556485469. The reversal of 556485444 is 444584655.

It is a happy number.

556485444 is a `hidden beast` number, since 5 + 564 + 85 + 4 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 556485444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576214 + ... + 2576429.

It is an arithmetic number, because the mean of its divisors is an integer number (60114180).

Almost surely, 2^556485444 is an apocalyptic number.

556485444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

556485444 is an abundant number, since it is smaller than the sum of its proper divisors (886254876).

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

556485444 is a wasteful number, since it uses less digits than its factorization.

556485444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152656 (or 5152648 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

The square root of 556485444 is about 23589.9437048926. The cubic root of 556485444 is about 822.5290962013.

The spelling of 556485444 in words is "five hundred fifty-six million, four hundred eighty-five thousand, four hundred forty-four".