255606923 has 24 divisors (see below), whose sum is σ = 303575040. Its totient is φ = 213339360.

The previous prime is 255606919. The next prime is 255606937. The reversal of 255606923 is 329606552.

It is not a de Polignac number, because 255606923 - 2² = 255606919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255606913) 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 23 ways as a sum of consecutive naturals, for example, 667190 + ... + 667572.

It is an arithmetic number, because the mean of its divisors is an integer number (12648960).

Almost surely, 2^255606923 is an apocalyptic number.

255606923 is a deficient number, since it is larger than the sum of its proper divisors (47968117).

255606923 is a wasteful number, since it uses less digits than its factorization.

255606923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 255606923 is about 15987.7116248699. The cubic root of 255606923 is about 634.6352694976.

The spelling of 255606923 in words is "two hundred fifty-five million, six hundred six thousand, nine hundred twenty-three".