2208565 has 4 divisors (see below), whose sum is σ = 2650284. Its totient is φ = 1766848.

The previous prime is 2208559. The next prime is 2208581. The reversal of 2208565 is 5658022.

2208565 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, and also an emirpimes, since its reverse is a distinct semiprime: 5658022 = 2 ⋅2829011.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 904401 = 1142^2 + 951^2 .

It is a cyclic number.

It is not a de Polignac number, because 2208565 - 2⁹ = 2208053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220852 + ... + 220861.

It is an arithmetic number, because the mean of its divisors is an integer number (662571).

2^2208565 is an apocalyptic number.

It is an amenable number.

2208565 is a deficient number, since it is larger than the sum of its proper divisors (441719).

2208565 is an equidigital number, since it uses as much as digits as its factorization.

2208565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441718.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2208565 is about 1486.1241536292. The cubic root of 2208565 is about 130.2277074247.

The spelling of 2208565 in words is "two million, two hundred eight thousand, five hundred sixty-five".