22707225 has 36 divisors (see below), whose sum is σ = 41634736. Its totient is φ = 11823840.

The previous prime is 22707199. The next prime is 22707227. The reversal of 22707225 is 52270722.

It is a happy number.

It is not a de Polignac number, because 22707225 - 2²⁰ = 21658649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22707227) 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, 8502 + ... + 10848.

Almost surely, 2^22707225 is an apocalyptic number.

22707225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22707225 is a deficient number, since it is larger than the sum of its proper divisors (18927511).

22707225 is a wasteful number, since it uses less digits than its factorization.

22707225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22707225 is about 4765.2098589674. The cubic root of 22707225 is about 283.1748556269.

Adding to 22707225 its reverse (52270722), we get a palindrome (74977947).

The spelling of 22707225 in words is "twenty-two million, seven hundred seven thousand, two hundred twenty-five".