265331 has 4 divisors (see below), whose sum is σ = 289464. Its totient is φ = 241200.

The previous prime is 265313. The next prime is 265333. The reversal of 265331 is 133562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265331 - 2¹⁸ = 3187 is a prime.

It is a super-2 number, since 2×265331² = 140801079122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265333) 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, 12050 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (72366).

2²⁶⁵³³¹ is an apocalyptic number.

265331 is a deficient number, since it is larger than the sum of its proper divisors (24133).

265331 is a wasteful number, since it uses less digits than its factorization.

265331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24132.

The product of its digits is 540, while the sum is 20.

The square root of 265331 is about 515.1029023409. The cubic root of 265331 is about 64.2583147198.

Adding to 265331 its reverse (133562), we get a palindrome (398893).

Subtracting from 265331 its reverse (133562), we obtain a square (131769 = 363²).

The spelling of 265331 in words is "two hundred sixty-five thousand, three hundred thirty-one".