255257955 has 12 divisors (see below), whose sum is σ = 442447200. Its totient is φ = 136137552.

The previous prime is 255257953. The next prime is 255257969. The reversal of 255257955 is 559752552.

It is a happy number.

255257955 is a `hidden beast` number, since 2 + 5 + 525 + 79 + 55 = 666.

It is not a de Polignac number, because 255257955 - 2¹ = 255257953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5672399 = 255257955 / (2 + 5 + 5 + 2 + 5 + 7 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 255257955.

It is not an unprimeable number, because it can be changed into a prime (255257953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2836155 + ... + 2836244.

It is an arithmetic number, because the mean of its divisors is an integer number (36870600).

Almost surely, 2^255257955 is an apocalyptic number.

255257955 is a deficient number, since it is larger than the sum of its proper divisors (187189245).

255257955 is a wasteful number, since it uses less digits than its factorization.

255257955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672410 (or 5672407 counting only the distinct ones).

The product of its digits is 787500, while the sum is 45.

The square root of 255257955 is about 15976.7942654339. The cubic root of 255257955 is about 634.3463254934.

The spelling of 255257955 in words is "two hundred fifty-five million, two hundred fifty-seven thousand, nine hundred fifty-five".