22252665 has 16 divisors (see below), whose sum is σ = 35762688. Its totient is φ = 11815296.

The previous prime is 22252639. The next prime is 22252669. The reversal of 22252665 is 56625222.

It is not a de Polignac number, because 22252665 - 2⁷ = 22252537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22252669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312 + ... + 6678.

It is an arithmetic number, because the mean of its divisors is an integer number (2235168).

Almost surely, 2^22252665 is an apocalyptic number.

It is an amenable number.

22252665 is a deficient number, since it is larger than the sum of its proper divisors (13510023).

22252665 is a wasteful number, since it uses less digits than its factorization.

22252665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608.

The product of its digits is 14400, while the sum is 30.

The square root of 22252665 is about 4717.2730470050. The cubic root of 22252665 is about 281.2725453532.

Adding to 22252665 its reverse (56625222), we get a palindrome (78877887).

The spelling of 22252665 in words is "twenty-two million, two hundred fifty-two thousand, six hundred sixty-five".