22505133250 has 16 divisors (see below), whose sum is σ = 42129609912. Its totient is φ = 9002053200.

The previous prime is 22505133247. The next prime is 22505133253. The reversal of 22505133250 is 5233150522.

It is an interprime number because it is at equal distance from previous prime (22505133247) and next prime (22505133253).

It can be written as a sum of positive squares in 4 ways, for example, as 9922351321 + 12582781929 = 99611^2 + 112173^2 .

It is not an unprimeable number, because it can be changed into a prime (22505133253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45010017 + ... + 45010516.

Almost surely, 2^22505133250 is an apocalyptic number.

22505133250 is a deficient number, since it is larger than the sum of its proper divisors (19624476662).

22505133250 is an equidigital number, since it uses as much as digits as its factorization.

22505133250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90020550 (or 90020540 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 22505133250 its reverse (5233150522), we get a palindrome (27738283772).

The spelling of 22505133250 in words is "twenty-two billion, five hundred five million, one hundred thirty-three thousand, two hundred fifty".