255608 has 16 divisors (see below), whose sum is σ = 486000. Its totient is φ = 126016.

The previous prime is 255589. The next prime is 255613. The reversal of 255608 is 806552.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

255608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2²⁵⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

255608 is a deficient number, since it is larger than the sum of its proper divisors (230392).

255608 is a wasteful number, since it uses less digits than its factorization.

255608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 255608 is about 505.5768982064. The cubic root of 255608 is about 63.4636160842.

It can be divided in two parts, 25560 and 8, that multiplied together give a triangular number (204480 = T₆₃₉).

The spelling of 255608 in words is "two hundred fifty-five thousand, six hundred eight".