22502425 has 24 divisors (see below), whose sum is σ = 31105152. Its totient is φ = 16008000.

The previous prime is 22502413. The next prime is 22502429. The reversal of 22502425 is 52420522.

It is a happy number.

It is not a de Polignac number, because 22502425 - 2⁵ = 22502393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22502396 and 22502405.

It is not an unprimeable number, because it can be changed into a prime (22502429) 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 23 ways as a sum of consecutive naturals, for example, 12055 + ... + 13795.

It is an arithmetic number, because the mean of its divisors is an integer number (1296048).

Almost surely, 2^22502425 is an apocalyptic number.

22502425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22502425 is a deficient number, since it is larger than the sum of its proper divisors (8602727).

22502425 is a wasteful number, since it uses less digits than its factorization.

22502425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1804 counting only the distinct ones).

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

The square root of 22502425 is about 4743.6721008097. The cubic root of 22502425 is about 282.3209505772.

Adding to 22502425 its reverse (52420522), we get a palindrome (74922947).

The spelling of 22502425 in words is "twenty-two million, five hundred two thousand, four hundred twenty-five".