265523465 has 4 divisors (see below), whose sum is σ = 318628164. Its totient is φ = 212418768.

The previous prime is 265523441. The next prime is 265523483. The reversal of 265523465 is 564325562.

265523465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 129777664 + 135745801 = 11392^2 + 11651^2 .

It is a cyclic number.

It is not a de Polignac number, because 265523465 - 2¹⁰ = 265522441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26552342 + ... + 26552351.

It is an arithmetic number, because the mean of its divisors is an integer number (79657041).

Almost surely, 2^265523465 is an apocalyptic number.

It is an amenable number.

265523465 is a deficient number, since it is larger than the sum of its proper divisors (53104699).

265523465 is an equidigital number, since it uses as much as digits as its factorization.

265523465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53104698.

The product of its digits is 216000, while the sum is 38.

The square root of 265523465 is about 16294.8907636719. The cubic root of 265523465 is about 642.7384813199.

The spelling of 265523465 in words is "two hundred sixty-five million, five hundred twenty-three thousand, four hundred sixty-five".