255039156 has 18 divisors (see below), whose sum is σ = 644682402. Its totient is φ = 85013040.

The previous prime is 255039143. The next prime is 255039179. The reversal of 255039156 is 651930552.

It can be written as a sum of positive squares in only one way, i.e., 183060900 + 71978256 = 13530^2 + 8484^2 .

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

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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: 7084421 = 255039156 / (2 + 5 + 5 + 0 + 3 + 9 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 255039156.

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, 3542175 + ... + 3542246.

It is an arithmetic number, because the mean of its divisors is an integer number (35815689).

Almost surely, 2^255039156 is an apocalyptic number.

It is an amenable number.

255039156 is an abundant number, since it is smaller than the sum of its proper divisors (389643246).

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

255039156 is a wasteful number, since it uses less digits than its factorization.

255039156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7084431 (or 7084426 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 255039156 is about 15969.9453975272. The cubic root of 255039156 is about 634.1650265178.

The spelling of 255039156 in words is "two hundred fifty-five million, thirty-nine thousand, one hundred fifty-six".