22240525 has 12 divisors (see below), whose sum is σ = 27792864. Its totient is φ = 17654000.

The previous prime is 22240501. The next prime is 22240553. The reversal of 22240525 is 52504222.

It is a happy number.

It is not a de Polignac number, because 22240525 - 2⁷ = 22240397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22240496 and 22240505.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 121 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (2316072).

Almost surely, 2^22240525 is an apocalyptic number.

22240525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22240525 is a deficient number, since it is larger than the sum of its proper divisors (5552339).

22240525 is a wasteful number, since it uses less digits than its factorization.

22240525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932 (or 6927 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22240525 is about 4715.9861110907. The cubic root of 22240525 is about 281.2213863894.

Adding to 22240525 its reverse (52504222), we get a palindrome (74744747).

The spelling of 22240525 in words is "twenty-two million, two hundred forty thousand, five hundred twenty-five".