22253165 has 16 divisors (see below), whose sum is σ = 29258496. Its totient is φ = 16113600.

The previous prime is 22253149. The next prime is 22253177. The reversal of 22253165 is 56135222.

It is not a de Polignac number, because 22253165 - 2⁴ = 22253149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 14159 + ... + 15651.

It is an arithmetic number, because the mean of its divisors is an integer number (1828656).

Almost surely, 2^22253165 is an apocalyptic number.

It is an amenable number.

22253165 is a deficient number, since it is larger than the sum of its proper divisors (7005331).

22253165 is a wasteful number, since it uses less digits than its factorization.

22253165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its digits is 3600, while the sum is 26.

The square root of 22253165 is about 4717.3260434276. The cubic root of 22253165 is about 281.2746519955.

Adding to 22253165 its reverse (56135222), we get a palindrome (78388387).

The spelling of 22253165 in words is "twenty-two million, two hundred fifty-three thousand, one hundred sixty-five".