553656 has 64 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 163328.

The previous prime is 553649. The next prime is 553667. The reversal of 553656 is 656355.

Its product of digits (13500) is a multiple of the sum of its prime factors (108).

It is a congruent number.

It is an unprimeable number.

553656 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 15 ways as a sum of consecutive naturals, for example, 9355 + ... + 9413.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2⁵⁵³⁶⁵⁶ 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 553656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777600).

553656 is an abundant number, since it is smaller than the sum of its proper divisors (1001544).

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

553656 is a wasteful number, since it uses less digits than its factorization.

553656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 104 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 553656 is about 744.0806407910. The cubic root of 553656 is about 82.1132680178.

The spelling of 553656 in words is "five hundred fifty-three thousand, six hundred fifty-six".