265256 has 16 divisors (see below), whose sum is σ = 505440. Its totient is φ = 130480.

The previous prime is 265249. The next prime is 265261. The reversal of 265256 is 652562.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (31590).

2²⁶⁵²⁵⁶ is an apocalyptic number.

It is an amenable number.

265256 is a deficient number, since it is larger than the sum of its proper divisors (240184).

265256 is a wasteful number, since it uses less digits than its factorization.

265256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 540 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 265256 is about 515.0300962080. The cubic root of 265256 is about 64.2522596065.

The spelling of 265256 in words is "two hundred sixty-five thousand, two hundred fifty-six".