255804165 has 12 divisors (see below), whose sum is σ = 443393964. Its totient is φ = 136428864.

The previous prime is 255804139. The next prime is 255804167. The reversal of 255804165 is 561408552.

255804165 is a `hidden beast` number, since 2 + 558 + 0 + 41 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 193599396 + 62204769 = 13914^2 + 7887^2 .

It is not a de Polignac number, because 255804165 - 2²² = 251609861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255804167) 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, 2842224 + ... + 2842313.

It is an arithmetic number, because the mean of its divisors is an integer number (36949497).

Almost surely, 2^255804165 is an apocalyptic number.

It is an amenable number.

255804165 is a deficient number, since it is larger than the sum of its proper divisors (187589799).

255804165 is a wasteful number, since it uses less digits than its factorization.

255804165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684548 (or 5684545 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 255804165 is about 15993.8789854119. The cubic root of 255804165 is about 634.7984687101.

The spelling of 255804165 in words is "two hundred fifty-five million, eight hundred four thousand, one hundred sixty-five".