22500452 has 24 divisors (see below), whose sum is σ = 44900856. Its totient is φ = 9773568.

The previous prime is 22500449. The next prime is 22500493. The reversal of 22500452 is 25400522.

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 20016676 = 1576^2 + 4474^2 .

It is a congruent number.

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, 11843 + ... + 13610.

It is an arithmetic number, because the mean of its divisors is an integer number (1870869).

Almost surely, 2^22500452 is an apocalyptic number.

It is an amenable number.

22500452 is a deficient number, since it is larger than the sum of its proper divisors (22400404).

22500452 is a wasteful number, since it uses less digits than its factorization.

22500452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25487 (or 25485 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22500452 is about 4743.4641349967. The cubic root of 22500452 is about 282.3126990885.

Adding to 22500452 its reverse (25400522), we get a palindrome (47900974).

The spelling of 22500452 in words is "twenty-two million, five hundred thousand, four hundred fifty-two".