556000566 has 48 divisors (see below), whose sum is σ = 1237142592. Its totient is φ = 166437040.

The previous prime is 556000561. The next prime is 556000579. The reversal of 556000566 is 665000655.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556000561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55645 + ... + 64871.

It is an arithmetic number, because the mean of its divisors is an integer number (25773804).

Almost surely, 2^556000566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556000566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618571296).

556000566 is an abundant number, since it is smaller than the sum of its proper divisors (681142026).

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

556000566 is a wasteful number, since it uses less digits than its factorization.

556000566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9337 (or 9326 counting only the distinct ones).

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

The square root of 556000566 is about 23579.6642469735. The cubic root of 556000566 is about 822.2901308885.

Adding to 556000566 its reverse (665000655), we get a palindrome (1221001221).

The spelling of 556000566 in words is "five hundred fifty-six million, five hundred sixty-six", and thus it is an aban number.