556285664 has 24 divisors (see below), whose sum is σ = 1194750648. Its totient is φ = 252856960.

The previous prime is 556285633. The next prime is 556285687. The reversal of 556285664 is 466582655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789827 + ... + 790530.

It is an arithmetic number, because the mean of its divisors is an integer number (49781277).

Almost surely, 2^556285664 is an apocalyptic number.

It is an amenable number.

556285664 is an abundant number, since it is smaller than the sum of its proper divisors (638464984).

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

556285664 is a wasteful number, since it uses less digits than its factorization.

556285664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580378 (or 1580370 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 47.

The square root of 556285664 is about 23585.7088933108. The cubic root of 556285664 is about 822.4306542546.

The spelling of 556285664 in words is "five hundred fifty-six million, two hundred eighty-five thousand, six hundred sixty-four".