255929 has 4 divisors (see below), whose sum is σ = 262884. Its totient is φ = 248976.

The previous prime is 255923. The next prime is 255947. The reversal of 255929 is 929552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 200704 + 55225 = 448^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 255929 - 2¹² = 251833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255895 and 255904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255923) 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 3 ways as a sum of consecutive naturals, for example, 3422 + ... + 3495.

It is an arithmetic number, because the mean of its divisors is an integer number (65721).

2²⁵⁵⁹²⁹ is an apocalyptic number.

It is an amenable number.

255929 is a deficient number, since it is larger than the sum of its proper divisors (6955).

255929 is an equidigital number, since it uses as much as digits as its factorization.

255929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954.

The product of its digits is 8100, while the sum is 32.

The square root of 255929 is about 505.8942577259. The cubic root of 255929 is about 63.4901714592.

It can be divided in two parts, 25 and 5929, that multiplied together give a square (148225 = 385²).

The spelling of 255929 in words is "two hundred fifty-five thousand, nine hundred twenty-nine".