22500165 has 16 divisors (see below), whose sum is σ = 36073728. Its totient is φ = 11975616.

The previous prime is 22500157. The next prime is 22500173. The reversal of 22500165 is 56100522.

It is an interprime number because it is at equal distance from previous prime (22500157) and next prime (22500173).

It is not a de Polignac number, because 22500165 - 2³ = 22500157 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 7972 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (2254608).

Almost surely, 2^22500165 is an apocalyptic number.

It is an amenable number.

22500165 is a deficient number, since it is larger than the sum of its proper divisors (13573563).

22500165 is a wasteful number, since it uses less digits than its factorization.

22500165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 22500165 is about 4743.4338827478. The cubic root of 22500165 is about 282.3114987557.

Adding to 22500165 its reverse (56100522), we get a palindrome (78600687).

The spelling of 22500165 in words is "twenty-two million, five hundred thousand, one hundred sixty-five".