255360939 has 24 divisors (see below), whose sum is σ = 354091248. Its totient is φ = 163676160.

The previous prime is 255360913. The next prime is 255360947. The reversal of 255360939 is 939063552.

It is not a de Polignac number, because 255360939 - 2⁷ = 255360811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255360939.

It is not an unprimeable number, because it can be changed into a prime (255360439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398059 + ... + 398699.

It is an arithmetic number, because the mean of its divisors is an integer number (14753802).

Almost surely, 2^255360939 is an apocalyptic number.

255360939 is a deficient number, since it is larger than the sum of its proper divisors (98730309).

255360939 is an equidigital number, since it uses as much as digits as its factorization.

255360939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 42.

The square root of 255360939 is about 15980.0168648221. The cubic root of 255360939 is about 634.4316231791.

The spelling of 255360939 in words is "two hundred fifty-five million, three hundred sixty thousand, nine hundred thirty-nine".