22450025 has 24 divisors (see below), whose sum is σ = 30456384. Its totient is φ = 16315200.

The previous prime is 22450003. The next prime is 22450027. The reversal of 22450025 is 52005422.

It is not a de Polignac number, because 22450025 - 2⁶ = 22449961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22449979 and 22450006.

It is not an unprimeable number, because it can be changed into a prime (22450027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21260 + ... + 22290.

It is an arithmetic number, because the mean of its divisors is an integer number (1269016).

Almost surely, 2^22450025 is an apocalyptic number.

22450025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22450025 is a deficient number, since it is larger than the sum of its proper divisors (8006359).

22450025 is a wasteful number, since it uses less digits than its factorization.

22450025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22450025 is about 4738.1457343564. The cubic root of 22450025 is about 282.1016391669.

Adding to 22450025 its reverse (52005422), we get a palindrome (74455447).

The spelling of 22450025 in words is "twenty-two million, four hundred fifty thousand, twenty-five".