255775 has 12 divisors (see below), whose sum is σ = 341992. Its totient is φ = 188640.

The previous prime is 255767. The next prime is 255803. The reversal of 255775 is 577552.

It is not a de Polignac number, because 255775 - 2³ = 255767 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 69 + ... + 718.

2²⁵⁵⁷⁷⁵ is an apocalyptic number.

255775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255775 is a deficient number, since it is larger than the sum of its proper divisors (86217).

255775 is a wasteful number, since it uses less digits than its factorization.

255775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 805 counting only the distinct ones).

The product of its digits is 12250, while the sum is 31.

The square root of 255775 is about 505.7420291018. The cubic root of 255775 is about 63.4774342701.

The spelling of 255775 in words is "two hundred fifty-five thousand, seven hundred seventy-five".