265655 has 16 divisors (see below), whose sum is σ = 354144. Its totient is φ = 190080.

The previous prime is 265621. The next prime is 265703. The reversal of 265655 is 556562.

It is not a de Polignac number, because 265655 - 2⁸ = 265399 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3932 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (22134).

2²⁶⁵⁶⁵⁵ is an apocalyptic number.

265655 is a deficient number, since it is larger than the sum of its proper divisors (88489).

265655 is a wasteful number, since it uses less digits than its factorization.

265655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146.

The product of its digits is 9000, while the sum is 29.

The square root of 265655 is about 515.4173066555. The cubic root of 265655 is about 64.2844597051.

The spelling of 265655 in words is "two hundred sixty-five thousand, six hundred fifty-five".