556632 has 40 divisors (see below), whose sum is σ = 1560900. Its totient is φ = 185328.

The previous prime is 556627. The next prime is 556639. The reversal of 556632 is 236655.

556632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 556596 and 556605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556639) by changing a digit.

556632 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 9 ways as a sum of consecutive naturals, for example, 219 + ... + 1077.

2⁵⁵⁶⁶³² 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 556632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780450).

556632 is an abundant number, since it is smaller than the sum of its proper divisors (1004268).

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

556632 is a wasteful number, since it uses less digits than its factorization.

556632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 864 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 556632 is about 746.0777439383. The cubic root of 556632 is about 82.2601296948.

The spelling of 556632 in words is "five hundred fifty-six thousand, six hundred thirty-two".