255305268 has 18 divisors (see below), whose sum is σ = 645355074. Its totient is φ = 85101744.

The previous prime is 255305227. The next prime is 255305273. The reversal of 255305268 is 862503552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 210308004 + 44997264 = 14502^2 + 6708^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7091813 = 255305268 / (2 + 5 + 5 + 3 + 0 + 5 + 2 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3545871 + ... + 3545942.

Almost surely, 2^255305268 is an apocalyptic number.

It is an amenable number.

255305268 is an abundant number, since it is smaller than the sum of its proper divisors (390049806).

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

255305268 is a wasteful number, since it uses less digits than its factorization.

255305268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091823 (or 7091818 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 255305268 is about 15978.2748755928. The cubic root of 255305268 is about 634.3855158796.

The spelling of 255305268 in words is "two hundred fifty-five million, three hundred five thousand, two hundred sixty-eight".