22132564 has 6 divisors (see below), whose sum is σ = 38731994. Its totient is φ = 11066280.

The previous prime is 22132529. The next prime is 22132567. The reversal of 22132564 is 46523122.

It can be written as a sum of positive squares in only one way, i.e., 21696964 + 435600 = 4658^2 + 660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132567) 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 as a sum of consecutive naturals, namely, 2766567 + ... + 2766574.

Almost surely, 2^22132564 is an apocalyptic number.

It is an amenable number.

22132564 is a deficient number, since it is larger than the sum of its proper divisors (16599430).

22132564 is a wasteful number, since it uses less digits than its factorization.

22132564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533145 (or 5533143 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 22132564 is about 4704.5259059761. The cubic root of 22132564 is about 280.7656087566.

Adding to 22132564 its reverse (46523122), we get a palindrome (68655686).

The spelling of 22132564 in words is "twenty-two million, one hundred thirty-two thousand, five hundred sixty-four".