265705 has 8 divisors (see below), whose sum is σ = 347904. Its totient is φ = 193200.

The previous prime is 265703. The next prime is 265709. The reversal of 265705 is 507562.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 265705 - 2¹ = 265703 is a prime.

It is a Duffinian number.

265705 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 265705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2361 + ... + 2470.

It is an arithmetic number, because the mean of its divisors is an integer number (43488).

2²⁶⁵⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

265705 is a deficient number, since it is larger than the sum of its proper divisors (82199).

265705 is a wasteful number, since it uses less digits than its factorization.

265705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 265705 is about 515.4658087594. The cubic root of 265705 is about 64.2884925313.

The spelling of 265705 in words is "two hundred sixty-five thousand, seven hundred five".