22502825 has 12 divisors (see below), whose sum is σ = 28063308. Its totient is φ = 17899200.

The previous prime is 22502813. The next prime is 22502827. The reversal of 22502825 is 52820522.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3519376 + 18983449 = 1876^2 + 4357^2 .

It is not a de Polignac number, because 22502825 - 2⁸ = 22502569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22502794 and 22502803.

It is not an unprimeable number, because it can be changed into a prime (22502827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2039 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (2338609).

Almost surely, 2^22502825 is an apocalyptic number.

22502825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22502825 is a deficient number, since it is larger than the sum of its proper divisors (5560483).

22502825 is a wasteful number, since it uses less digits than its factorization.

22502825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 22502825 is about 4743.7142620525. The cubic root of 22502825 is about 282.3226234000.

The spelling of 22502825 in words is "twenty-two million, five hundred two thousand, eight hundred twenty-five".