22162564 has 6 divisors (see below), whose sum is σ = 38784494. Its totient is φ = 11081280.

The previous prime is 22162561. The next prime is 22162571. The reversal of 22162564 is 46526122.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 166464 = 4690^2 + 408^2 .

It is not an unprimeable number, because it can be changed into a prime (22162561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770317 + ... + 2770324.

Almost surely, 2^22162564 is an apocalyptic number.

It is an amenable number.

22162564 is a deficient number, since it is larger than the sum of its proper divisors (16621930).

22162564 is a wasteful number, since it uses less digits than its factorization.

22162564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540645 (or 5540643 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 22162564 is about 4707.7132453029. The cubic root of 22162564 is about 280.8924078242.

Adding to 22162564 its reverse (46526122), we get a palindrome (68688686).

The spelling of 22162564 in words is "twenty-two million, one hundred sixty-two thousand, five hundred sixty-four".