555256 has 32 divisors (see below), whose sum is σ = 1184400. Its totient is φ = 241920.

The previous prime is 555253. The next prime is 555257. The reversal of 555256 is 652555.

555256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836 + ... + 2116.

2⁵⁵⁵²⁵⁶ 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 555256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592200).

555256 is an abundant number, since it is smaller than the sum of its proper divisors (629144).

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

555256 is a wasteful number, since it uses less digits than its factorization.

555256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 315 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 555256 is about 745.1550174293. The cubic root of 555256 is about 82.1922911374.

The spelling of 555256 in words is "five hundred fifty-five thousand, two hundred fifty-six".