22845025 has 36 divisors (see below), whose sum is σ = 34922988. Its totient is φ = 14730240.

The previous prime is 22845023. The next prime is 22845037. The reversal of 22845025 is 52054822.

It can be written as a sum of positive squares in 6 ways, for example, as 254016 + 22591009 = 504^2 + 4753^2 .

It is not a de Polignac number, because 22845025 - 2¹ = 22845023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22844984 and 22845002.

It is not an unprimeable number, because it can be changed into a prime (22845023) 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, 20277 + ... + 21373.

It is an arithmetic number, because the mean of its divisors is an integer number (970083).

Almost surely, 2^22845025 is an apocalyptic number.

22845025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22845025 is a deficient number, since it is larger than the sum of its proper divisors (12077963).

22845025 is a wasteful number, since it uses less digits than its factorization.

22845025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 22845025 is about 4779.6469534893. The cubic root of 22845025 is about 283.7465213337.

Adding to 22845025 its reverse (52054822), we get a palindrome (74899847).

The spelling of 22845025 in words is "twenty-two million, eight hundred forty-five thousand, twenty-five".