265263215 has 12 divisors (see below), whose sum is σ = 370286136. Its totient is φ = 181894608.

The previous prime is 265263211. The next prime is 265263227. The reversal of 265263215 is 512362562.

It is not a de Polignac number, because 265263215 - 2² = 265263211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265263211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541109 + ... + 541598.

It is an arithmetic number, because the mean of its divisors is an integer number (30857178).

Almost surely, 2^265263215 is an apocalyptic number.

265263215 is a deficient number, since it is larger than the sum of its proper divisors (105022921).

265263215 is a wasteful number, since it uses less digits than its factorization.

265263215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082726 (or 1082719 counting only the distinct ones).

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

The square root of 265263215 is about 16286.9031740230. The cubic root of 265263215 is about 642.5284215803.

The spelling of 265263215 in words is "two hundred sixty-five million, two hundred sixty-three thousand, two hundred fifteen".