22252865 has 4 divisors (see below), whose sum is σ = 26703444. Its totient is φ = 17802288.

The previous prime is 22252829. The next prime is 22252871. The reversal of 22252865 is 56825222.

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 13778944 + 8473921 = 3712^2 + 2911^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252865 - 2¹⁰ = 22251841 is a prime.

It is a Duffinian 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, 2225282 + ... + 2225291.

It is an arithmetic number, because the mean of its divisors is an integer number (6675861).

Almost surely, 2^22252865 is an apocalyptic number.

It is an amenable number.

22252865 is a deficient number, since it is larger than the sum of its proper divisors (4450579).

22252865 is an equidigital number, since it uses as much as digits as its factorization.

22252865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450578.

The product of its digits is 19200, while the sum is 32.

The square root of 22252865 is about 4717.2942456455. The cubic root of 22252865 is about 281.2733880139.

The spelling of 22252865 in words is "twenty-two million, two hundred fifty-two thousand, eight hundred sixty-five".