255576 has 32 divisors (see below), whose sum is σ = 668160. Its totient is φ = 81312.

The previous prime is 255571. The next prime is 255587. The reversal of 255576 is 675552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255571) by changing a digit.

255576 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, 321 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (20880).

2²⁵⁵⁵⁷⁶ 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 255576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334080).

255576 is an abundant number, since it is smaller than the sum of its proper divisors (412584).

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

255576 is a wasteful number, since it uses less digits than its factorization.

255576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 491 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 255576 is about 505.5452502002. The cubic root of 255576 is about 63.4609676010.

The spelling of 255576 in words is "two hundred fifty-five thousand, five hundred seventy-six".