2665265 has 4 divisors (see below), whose sum is σ = 3198324. Its totient is φ = 2132208.

The previous prime is 2665261. The next prime is 2665291. The reversal of 2665265 is 5625662.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1227664 + 1437601 = 1108^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665265 - 2² = 2665261 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2665261) 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, 266522 + ... + 266531.

It is an arithmetic number, because the mean of its divisors is an integer number (799581).

2^2665265 is an apocalyptic number.

It is an amenable number.

2665265 is a deficient number, since it is larger than the sum of its proper divisors (533059).

2665265 is an equidigital number, since it uses as much as digits as its factorization.

2665265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533058.

The product of its digits is 21600, while the sum is 32.

The square root of 2665265 is about 1632.5639344295. The cubic root of 2665265 is about 138.6479540773.

The spelling of 2665265 in words is "two million, six hundred sixty-five thousand, two hundred sixty-five".