22115025 has 60 divisors (see below), whose sum is σ = 41831152. Its totient is φ = 11547360.

The previous prime is 22114999. The next prime is 22115033. The reversal of 22115025 is 52051122.

It is not a de Polignac number, because 22115025 - 2¹¹ = 22112977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22114989 and 22115007.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 135594 + ... + 135756.

Almost surely, 2^22115025 is an apocalyptic number.

22115025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22115025 is a deficient number, since it is larger than the sum of its proper divisors (19716127).

22115025 is a wasteful number, since it uses less digits than its factorization.

22115025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22115025 is about 4702.6614804810. The cubic root of 22115025 is about 280.6914247118.

Adding to 22115025 its reverse (52051122), we get a palindrome (74166147).

The spelling of 22115025 in words is "twenty-two million, one hundred fifteen thousand, twenty-five".