22450225 has 12 divisors (see below), whose sum is σ = 31815424. Its totient is φ = 15394320.

The previous prime is 22450199. The next prime is 22450273. The reversal of 22450225 is 52205422.

It is a happy number.

It is not a de Polignac number, because 22450225 - 2⁷ = 22450097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22450196 and 22450205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63969 + ... + 64318.

Almost surely, 2^22450225 is an apocalyptic number.

22450225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22450225 is a deficient number, since it is larger than the sum of its proper divisors (9365199).

22450225 is a wasteful number, since it uses less digits than its factorization.

22450225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128304 (or 128299 counting only the distinct ones).

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

The square root of 22450225 is about 4738.1668396121. The cubic root of 22450225 is about 282.1024768818.

Adding to 22450225 its reverse (52205422), we get a palindrome (74655647).

The spelling of 22450225 in words is "twenty-two million, four hundred fifty thousand, two hundred twenty-five".