22425625 has 20 divisors (see below), whose sum is σ = 28593972. Its totient is φ = 17576000.

The previous prime is 22425619. The next prime is 22425649. The reversal of 22425625 is 52652422.

It can be written as a sum of positive squares in 10 ways, for example, as 7160976 + 15264649 = 2676^2 + 3907^2 .

It is not a de Polignac number, because 22425625 - 2⁵ = 22425593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22425593 and 22425602.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32787 + ... + 33463.

Almost surely, 2^22425625 is an apocalyptic number.

22425625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22425625 is a deficient number, since it is larger than the sum of its proper divisors (6168347).

22425625 is an frugal number, since it uses more digits than its factorization.

22425625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 735 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 22425625 is about 4735.5701874220. The cubic root of 22425625 is about 281.9994005990. Note that the first 3 decimals are identical.

The spelling of 22425625 in words is "twenty-two million, four hundred twenty-five thousand, six hundred twenty-five".