22512050 has 54 divisors (see below), whose sum is σ = 46791927. Its totient is φ = 8052000.

The previous prime is 22512047. The next prime is 22512053. The reversal of 22512050 is 5021522.

It is an interprime number because it is at equal distance from previous prime (22512047) and next prime (22512053).

It can be written as a sum of positive squares in 5 ways, for example, as 34969 + 22477081 = 187^2 + 4741^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3355.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22512053) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 369020 + ... + 369080.

Almost surely, 2^22512050 is an apocalyptic number.

22512050 is an abundant number, since it is smaller than the sum of its proper divisors (24279877).

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

22512050 is a wasteful number, since it uses less digits than its factorization.

22512050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 22512050 is about 4744.6865017617. The cubic root of 22512050 is about 282.3611973774.

Multiplying 22512050 by its product of nonzero digits (200), we get a square (4502410000 = 67100²).

Adding to 22512050 its reverse (5021522), we get a palindrome (27533572).

The spelling of 22512050 in words is "twenty-two million, five hundred twelve thousand, fifty".