22165530 has 16 divisors (see below), whose sum is σ = 53197344. Its totient is φ = 5910800.

The previous prime is 22165513. The next prime is 22165547. The reversal of 22165530 is 3556122.

It is an interprime number because it is at equal distance from previous prime (22165513) and next prime (22165547).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22165530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369396 + ... + 369455.

It is an arithmetic number, because the mean of its divisors is an integer number (3324834).

Almost surely, 2^22165530 is an apocalyptic number.

22165530 is an abundant number, since it is smaller than the sum of its proper divisors (31031814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22165530 is a wasteful number, since it uses less digits than its factorization.

22165530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738861.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 22165530 is about 4708.0282497028. The cubic root of 22165530 is about 280.9049378082.

The spelling of 22165530 in words is "twenty-two million, one hundred sixty-five thousand, five hundred thirty".