265956 has 24 divisors (see below), whose sum is σ = 638400. Its totient is φ = 86112.

The previous prime is 265921. The next prime is 265957. The reversal of 265956 is 659562.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265957) by changing a digit.

265956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 743.

It is an arithmetic number, because the mean of its divisors is an integer number (26600).

2²⁶⁵⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

265956 is an abundant number, since it is smaller than the sum of its proper divisors (372444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265956 is a wasteful number, since it uses less digits than its factorization.

265956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 641 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 265956 is about 515.7092203946. The cubic root of 265956 is about 64.3087296780.

It can be divided in two parts, 265 and 956, that added together give a palindrome (1221).

The spelling of 265956 in words is "two hundred sixty-five thousand, nine hundred fifty-six".