253968255 has 24 divisors (see below), whose sum is σ = 441544272. Its totient is φ = 135039744.

The previous prime is 253968203. The next prime is 253968289. The reversal of 253968255 is 552869352.

253968255 is a `hidden beast` number, since 2 + 5 + 396 + 8 + 255 = 666.

It is not a de Polignac number, because 253968255 - 2²⁶ = 186859391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 253968255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6792 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (18397678).

Almost surely, 2^253968255 is an apocalyptic number.

253968255 is a deficient number, since it is larger than the sum of its proper divisors (187576017).

253968255 is a wasteful number, since it uses less digits than its factorization.

253968255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17095 (or 17092 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 253968255 is about 15936.3814901627. The cubic root of 253968255 is about 633.2761685862.

The spelling of 253968255 in words is "two hundred fifty-three million, nine hundred sixty-eight thousand, two hundred fifty-five".