255712 has 24 divisors (see below), whose sum is σ = 515592. Its totient is φ = 124800.

The previous prime is 255709. The next prime is 255713. The reversal of 255712 is 217552.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (21483).

2²⁵⁵⁷¹² 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 255712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257796).

255712 is an abundant number, since it is smaller than the sum of its proper divisors (259880).

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

255712 is a wasteful number, since it uses less digits than its factorization.

255712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 255712 is about 505.6797405473. The cubic root of 255712 is about 63.4722221282.

The spelling of 255712 in words is "two hundred fifty-five thousand, seven hundred twelve".