255590939 has 8 divisors (see below), whose sum is σ = 266259840. Its totient is φ = 245073600.

The previous prime is 255590897. The next prime is 255590957. The reversal of 255590939 is 939095552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255590939 - 2²⁴ = 238813723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255590893 and 255590902.

It is not an unprimeable number, because it can be changed into a prime (255590989) 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 7 ways as a sum of consecutive naturals, for example, 34442 + ... + 41199.

It is an arithmetic number, because the mean of its divisors is an integer number (33282480).

Almost surely, 2^255590939 is an apocalyptic number.

255590939 is a deficient number, since it is larger than the sum of its proper divisors (10668901).

255590939 is a wasteful number, since it uses less digits than its factorization.

255590939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75781.

The product of its (nonzero) digits is 546750, while the sum is 47.

The square root of 255590939 is about 15987.2117331322. The cubic root of 255590939 is about 634.6220405633.

The spelling of 255590939 in words is "two hundred fifty-five million, five hundred ninety thousand, nine hundred thirty-nine".