22200446025 has 36 divisors (see below), whose sum is σ = 39788649420. Its totient is φ = 11832739200.

The previous prime is 22200446017. The next prime is 22200446039. The reversal of 22200446025 is 52064400222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 349989264 + 21850456761 = 18708^2 + 147819^2 .

It is not a de Polignac number, because 22200446025 - 2³ = 22200446017 is a prime.

It is a super-4 number, since 4×22200446025⁴ (a number of 42 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22200446025.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 334291 + ... + 395159.

Almost surely, 2^22200446025 is an apocalyptic number.

22200446025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22200446025 is a deficient number, since it is larger than the sum of its proper divisors (17588203395).

22200446025 is a wasteful number, since it uses less digits than its factorization.

22200446025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62506 (or 62498 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22200446025 its reverse (52064400222), we get a palindrome (74264846247).

The spelling of 22200446025 in words is "twenty-two billion, two hundred million, four hundred forty-six thousand, twenty-five".