556521360 has 160 divisors (see below), whose sum is σ = 1782743040. Its totient is φ = 143537664.

The previous prime is 556521353. The next prime is 556521373. The reversal of 556521360 is 63125655.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161601 + ... + 1162079.

It is an arithmetic number, because the mean of its divisors is an integer number (11142144).

Almost surely, 2^556521360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556521360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891371520).

556521360 is an abundant number, since it is smaller than the sum of its proper divisors (1226221680).

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

556521360 is a wasteful number, since it uses less digits than its factorization.

556521360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 556521360 is about 23590.7049491956. The cubic root of 556521360 is about 822.5467913748.

The spelling of 556521360 in words is "five hundred fifty-six million, five hundred twenty-one thousand, three hundred sixty".