255923 has 2 divisors, whose sum is σ = 255924. Its totient is φ = 255922.

The previous prime is 255919. The next prime is 255947. The reversal of 255923 is 329552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255923 - 2² = 255919 is a prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 255892 and 255901.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255923.

It is not a weakly prime, because it can be changed into another prime (255973) 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 as a sum of consecutive naturals, namely, 127961 + 127962.

It is an arithmetic number, because the mean of its divisors is an integer number (127962).

2²⁵⁵⁹²³ is an apocalyptic number.

255923 is a deficient number, since it is larger than the sum of its proper divisors (1).

255923 is an equidigital number, since it uses as much as digits as its factorization.

255923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 255923 is about 505.8883275981. Note that the first 3 decimals coincide. The cubic root of 255923 is about 63.4896753007.

The spelling of 255923 in words is "two hundred fifty-five thousand, nine hundred twenty-three".