22557165 has 8 divisors (see below), whose sum is σ = 36091488. Its totient is φ = 12030480.

The previous prime is 22557163. The next prime is 22557169. The reversal of 22557165 is 56175522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22557165 - 2¹ = 22557163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22557163) 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 7 ways as a sum of consecutive naturals, for example, 751891 + ... + 751920.

It is an arithmetic number, because the mean of its divisors is an integer number (4511436).

Almost surely, 2^22557165 is an apocalyptic number.

It is an amenable number.

22557165 is a deficient number, since it is larger than the sum of its proper divisors (13534323).

22557165 is a wasteful number, since it uses less digits than its factorization.

22557165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503819.

The product of its digits is 21000, while the sum is 33.

The square root of 22557165 is about 4749.4383878518. The cubic root of 22557165 is about 282.5496923575.

It can be divided in two parts, 22557 and 165, that added together give a palindrome (22722).

The spelling of 22557165 in words is "twenty-two million, five hundred fifty-seven thousand, one hundred sixty-five".