556920 has 192 divisors, whose sum is σ = 2358720. Its totient is φ = 110592.

The previous prime is 556891. The next prime is 556931. The reversal of 556920 is 29655.

556920 is nontrivially palindromic in base 16.

It is a congruent number.

It is an unprimeable number.

556920 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 47 ways as a sum of consecutive naturals, for example, 32752 + ... + 32768.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

2⁵⁵⁶⁹²⁰ 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 556920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179360).

556920 is an abundant number, since it is smaller than the sum of its proper divisors (1801800).

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

556920 is a wasteful number, since it uses less digits than its factorization.

556920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 556920 is about 746.2707283553. The cubic root of 556920 is about 82.2743143103.

The spelling of 556920 in words is "five hundred fifty-six thousand, nine hundred twenty".