22200000525 has 36 divisors (see below), whose sum is σ = 39917490132. Its totient is φ = 11793899520.

The previous prime is 22200000523. The next prime is 22200000547. The reversal of 22200000525 is 52500000222.

It can be written as a sum of positive squares in 6 ways, for example, as 500059044 + 21699941481 = 22362^2 + 147309^2 .

It is not a de Polignac number, because 22200000525 - 2¹ = 22200000523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200000498 and 22200000507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200000523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134134 + ... + 249783.

Almost surely, 2^22200000525 is an apocalyptic number.

22200000525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22200000525 is a deficient number, since it is larger than the sum of its proper divisors (17717489607).

22200000525 is a wasteful number, since it uses less digits than its factorization.

22200000525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384190 (or 384182 counting only the distinct ones).

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

Adding to 22200000525 its reverse (52500000222), we get a palindrome (74700000747).

The spelling of 22200000525 in words is "twenty-two billion, two hundred million, five hundred twenty-five", and thus it is an aban number.