22520052 has 24 divisors (see below), whose sum is σ = 58385600. Its totient is φ = 7506648.

The previous prime is 22520051. The next prime is 22520063. The reversal of 22520052 is 25002522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520051) 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 in 7 ways as a sum of consecutive naturals, for example, 104152 + ... + 104367.

Almost surely, 2^22520052 is an apocalyptic number.

It is an amenable number.

22520052 is an abundant number, since it is smaller than the sum of its proper divisors (35865548).

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

22520052 is a wasteful number, since it uses less digits than its factorization.

22520052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208532 (or 208524 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22520052 is about 4745.5296859255. The cubic root of 22520052 is about 282.3946488940.

Adding to 22520052 its reverse (25002522), we get a palindrome (47522574).

The spelling of 22520052 in words is "twenty-two million, five hundred twenty thousand, fifty-two".