2265271265 has 16 divisors (see below), whose sum is σ = 2838682368. Its totient is φ = 1732099776.

The previous prime is 2265271243. The next prime is 2265271289. The reversal of 2265271265 is 5621725622.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2265271265 - 2¹⁸ = 2265009121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159599 + ... + 173211.

It is an arithmetic number, because the mean of its divisors is an integer number (177417648).

Almost surely, 2^2265271265 is an apocalyptic number.

It is an amenable number.

2265271265 is a deficient number, since it is larger than the sum of its proper divisors (573411103).

2265271265 is a wasteful number, since it uses less digits than its factorization.

2265271265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088.

The product of its digits is 100800, while the sum is 38.

The square root of 2265271265 is about 47594.8659521171. The cubic root of 2265271265 is about 1313.3286104356.

Adding to 2265271265 its reverse (5621725622), we get a palindrome (7886996887).

The spelling of 2265271265 in words is "two billion, two hundred sixty-five million, two hundred seventy-one thousand, two hundred sixty-five".