255943155 has 32 divisors (see below), whose sum is σ = 445326336. Its totient is φ = 124769664.

The previous prime is 255943151. The next prime is 255943169. The reversal of 255943155 is 551349552.

It is not a de Polignac number, because 255943155 - 2² = 255943151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (255943151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13714 + ... + 26456.

It is an arithmetic number, because the mean of its divisors is an integer number (13916448).

Almost surely, 2^255943155 is an apocalyptic number.

255943155 is a deficient number, since it is larger than the sum of its proper divisors (189383181).

255943155 is a wasteful number, since it uses less digits than its factorization.

255943155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12867.

The product of its digits is 135000, while the sum is 39.

The square root of 255943155 is about 15998.2234951260. The cubic root of 255943155 is about 634.9134194891.

The spelling of 255943155 in words is "two hundred fifty-five million, nine hundred forty-three thousand, one hundred fifty-five".