22306025 has 36 divisors (see below), whose sum is σ = 32654160. Its totient is φ = 15069600.

The previous prime is 22306013. The next prime is 22306027. The reversal of 22306025 is 52060322.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22306025 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22305988 and 22306006.

It is not an unprimeable number, because it can be changed into a prime (22306027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160406 + ... + 160544.

It is an arithmetic number, because the mean of its divisors is an integer number (907060).

Almost surely, 2^22306025 is an apocalyptic number.

22306025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22306025 is a deficient number, since it is larger than the sum of its proper divisors (10348135).

22306025 is a wasteful number, since it uses less digits than its factorization.

22306025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22306025 is about 4722.9254705108. The cubic root of 22306025 is about 281.4971884457.

Adding to 22306025 its reverse (52060322), we get a palindrome (74366347).

The spelling of 22306025 in words is "twenty-two million, three hundred six thousand, twenty-five".