22536452 has 6 divisors (see below), whose sum is σ = 39438798. Its totient is φ = 11268224.

The previous prime is 22536439. The next prime is 22536457. The reversal of 22536452 is 25463522.

It can be written as a sum of positive squares in only one way, i.e., 19061956 + 3474496 = 4366^2 + 1864^2 .

It is not an unprimeable number, because it can be changed into a prime (22536457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2817053 + ... + 2817060.

It is an arithmetic number, because the mean of its divisors is an integer number (6573133).

Almost surely, 2^22536452 is an apocalyptic number.

It is an amenable number.

22536452 is a deficient number, since it is larger than the sum of its proper divisors (16902346).

22536452 is a wasteful number, since it uses less digits than its factorization.

22536452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634117 (or 5634115 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 22536452 is about 4747.2573134390. The cubic root of 22536452 is about 282.4631826089.

Adding to 22536452 its reverse (25463522), we get a palindrome (47999974).

The spelling of 22536452 in words is "twenty-two million, five hundred thirty-six thousand, four hundred fifty-two".