255775584 has 24 divisors (see below), whose sum is σ = 671411160. Its totient is φ = 85258496.

The previous prime is 255775579. The next prime is 255775601. The reversal of 255775584 is 485577552.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×255775584² = 130842298741082112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332069 + ... + 1332260.

It is an arithmetic number, because the mean of its divisors is an integer number (27975465).

Almost surely, 2^255775584 is an apocalyptic number.

255775584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255775584 is an abundant number, since it is smaller than the sum of its proper divisors (415635576).

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

255775584 is a wasteful number, since it uses less digits than its factorization.

255775584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664342 (or 2664334 counting only the distinct ones).

The product of its digits is 1960000, while the sum is 48.

The square root of 255775584 is about 15992.9854623832. The cubic root of 255775584 is about 634.7748258180.

The spelling of 255775584 in words is "two hundred fifty-five million, seven hundred seventy-five thousand, five hundred eighty-four".