2217265 has 4 divisors (see below), whose sum is σ = 2660724. Its totient is φ = 1773808.

The previous prime is 2217251. The next prime is 2217277. The reversal of 2217265 is 5627122.

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 815409 + 1401856 = 903^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217265 - 2⁵ = 2217233 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, 221722 + ... + 221731.

It is an arithmetic number, because the mean of its divisors is an integer number (665181).

2^2217265 is an apocalyptic number.

It is an amenable number.

2217265 is a deficient number, since it is larger than the sum of its proper divisors (443459).

2217265 is an equidigital number, since it uses as much as digits as its factorization.

2217265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443458.

The product of its digits is 1680, while the sum is 25.

The square root of 2217265 is about 1489.0483538153. The cubic root of 2217265 is about 130.3984814519.

The spelling of 2217265 in words is "two million, two hundred seventeen thousand, two hundred sixty-five".