255012885 has 12 divisors (see below), whose sum is σ = 442022412. Its totient is φ = 136006848.

The previous prime is 255012883. The next prime is 255012911. The reversal of 255012885 is 588210552.

255012885 is a `hidden beast` number, since 2 + 550 + 1 + 28 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61496964 + 193515921 = 7842^2 + 13911^2 .

It is not a de Polignac number, because 255012885 - 2¹ = 255012883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255012881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833432 + ... + 2833521.

It is an arithmetic number, because the mean of its divisors is an integer number (36835201).

Almost surely, 2^255012885 is an apocalyptic number.

It is an amenable number.

255012885 is a deficient number, since it is larger than the sum of its proper divisors (187009527).

255012885 is a wasteful number, since it uses less digits than its factorization.

255012885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666964 (or 5666961 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 255012885 is about 15969.1228625745. The cubic root of 255012885 is about 634.1432511405.

The spelling of 255012885 in words is "two hundred fifty-five million, twelve thousand, eight hundred eighty-five".