265278 has 32 divisors (see below), whose sum is σ = 604800. Its totient is φ = 76896.

The previous prime is 265277. The next prime is 265313. The reversal of 265278 is 872562.

It is a d-powerful number, because it can be written as 2⁶ + 6² + 2¹⁸ + 5⁴ + 7⁴ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265271) 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, 1393 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2²⁶⁵²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).

265278 is an abundant number, since it is smaller than the sum of its proper divisors (339522).

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

265278 is a wasteful number, since it uses less digits than its factorization.

265278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216.

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

The square root of 265278 is about 515.0514537403. The cubic root of 265278 is about 64.2540358914.

The spelling of 265278 in words is "two hundred sixty-five thousand, two hundred seventy-eight".