656552 has 32 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 295104.

The previous prime is 656527. The next prime is 656561. The reversal of 656552 is 255656.

It is an unprimeable number.

656552 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6083 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (42525).

2⁶⁵⁶⁵⁵² 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 656552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680400).

656552 is an abundant number, since it is smaller than the sum of its proper divisors (704248).

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

656552 is a wasteful number, since it uses less digits than its factorization.

656552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 181 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 656552 is about 810.2789643080. The cubic root of 656552 is about 86.9139943642.

The spelling of 656552 in words is "six hundred fifty-six thousand, five hundred fifty-two".