255270 has 32 divisors (see below), whose sum is σ = 626688. Its totient is φ = 66528.

The previous prime is 255259. The next prime is 255313. The reversal of 255270 is 72552.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

255270 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, 1947 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (19584).

2²⁵⁵²⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313344).

255270 is an abundant number, since it is smaller than the sum of its proper divisors (371418).

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

255270 is a wasteful number, since it uses less digits than its factorization.

255270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 255270 is about 505.2425160257. The cubic root of 255270 is about 63.4356303088.

Adding to 255270 its product of nonzero digits (700), we get a triangular number (255970 = T₇₁₅).

It can be divided in two parts, 255 and 270, that added together give a palindrome (525).

The spelling of 255270 in words is "two hundred fifty-five thousand, two hundred seventy".