265089 has 16 divisors (see below), whose sum is σ = 400320. Its totient is φ = 154560.

The previous prime is 265079. The next prime is 265091. The reversal of 265089 is 980562.

265089 = 37² + 38² + ... + 94².

It is not a de Polignac number, because 265089 - 2⁷ = 264961 is a prime.

265089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (265079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (25020).

2²⁶⁵⁰⁸⁹ is an apocalyptic number.

265089 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

265089 is a deficient number, since it is larger than the sum of its proper divisors (135231).

265089 is a wasteful number, since it uses less digits than its factorization.

265089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 265089 is about 514.8679442342. The cubic root of 265089 is about 64.2387727863.

It can be divided in two parts, 26 and 5089, that added together give a palindrome (5115).

The spelling of 265089 in words is "two hundred sixty-five thousand, eighty-nine".