255069 has 20 divisors (see below), whose sum is σ = 394944. Its totient is φ = 163944.

The previous prime is 255053. The next prime is 255071. The reversal of 255069 is 960552.

It is not a de Polignac number, because 255069 - 2⁴ = 255053 is a prime.

It is a super-2 number, since 2×255069² = 130120389522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

255069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255019) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3774 + ... + 3840.

2²⁵⁵⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

255069 is a deficient number, since it is larger than the sum of its proper divisors (139875).

255069 is an equidigital number, since it uses as much as digits as its factorization.

255069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 255069 is about 505.0435624775. The cubic root of 255069 is about 63.4189761651.

The spelling of 255069 in words is "two hundred fifty-five thousand, sixty-nine".