265872 has 40 divisors (see below), whose sum is σ = 714240. Its totient is φ = 85120.

The previous prime is 265871. The next prime is 265873. The reversal of 265872 is 278562.

It is an interprime number because it is at equal distance from previous prime (265871) and next prime (265873).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁴ + 6⁴ + 8⁶ + 5² + 7³ + 2¹¹ .

It is not an unprimeable number, because it can be changed into a prime (265871) 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, 1297 + ... + 1487.

It is an arithmetic number, because the mean of its divisors is an integer number (17856).

2²⁶⁵⁸⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357120).

265872 is an abundant number, since it is smaller than the sum of its proper divisors (448368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265872 is a wasteful number, since it uses less digits than its factorization.

265872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 225 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 265872 is about 515.6277727198. The cubic root of 265872 is about 64.3019585052.

The spelling of 265872 in words is "two hundred sixty-five thousand, eight hundred seventy-two".