255931803 has 12 divisors (see below), whose sum is σ = 369835128. Its totient is φ = 170549280.

The previous prime is 255931777. The next prime is 255931807. The reversal of 255931803 is 308139552.

It is not a de Polignac number, because 255931803 - 2⁵ = 255931771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255931807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24948 + ... + 33678.

It is an arithmetic number, because the mean of its divisors is an integer number (30819594).

Almost surely, 2^255931803 is an apocalyptic number.

255931803 is a deficient number, since it is larger than the sum of its proper divisors (113903325).

255931803 is a wasteful number, since it uses less digits than its factorization.

255931803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994 (or 11991 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 255931803 is about 15997.8687017990. The cubic root of 255931803 is about 634.9040324519.

The spelling of 255931803 in words is "two hundred fifty-five million, nine hundred thirty-one thousand, eight hundred three".