265667 has 4 divisors (see below), whose sum is σ = 267600. Its totient is φ = 263736.

The previous prime is 265621. The next prime is 265703. The reversal of 265667 is 766562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766562 = 2 ⋅383281.

It is a cyclic number.

It is not a de Polignac number, because 265667 - 2¹⁰ = 264643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (66900).

2²⁶⁵⁶⁶⁷ is an apocalyptic number.

265667 is a deficient number, since it is larger than the sum of its proper divisors (1933).

265667 is a wasteful number, since it uses less digits than its factorization.

265667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its digits is 15120, while the sum is 32.

The square root of 265667 is about 515.4289475767. The cubic root of 265667 is about 64.2854276295.

The spelling of 265667 in words is "two hundred sixty-five thousand, six hundred sixty-seven".