255662144 has 56 divisors (see below), whose sum is σ = 529132800. Its totient is φ = 122411520.

The previous prime is 255662123. The next prime is 255662153. The reversal of 255662144 is 441266552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257489 + ... + 258479.

It is an arithmetic number, because the mean of its divisors is an integer number (9448800).

Almost surely, 2^255662144 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 255662144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264566400).

255662144 is an abundant number, since it is smaller than the sum of its proper divisors (273470656).

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

255662144 is a wasteful number, since it uses less digits than its factorization.

255662144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1161 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 255662144 is about 15989.4385142193. The cubic root of 255662144 is about 634.6809681435.

The spelling of 255662144 in words is "two hundred fifty-five million, six hundred sixty-two thousand, one hundred forty-four".