22908425 has 6 divisors (see below), whose sum is σ = 28406478. Its totient is φ = 18326720.

The previous prime is 22908419. The next prime is 22908491. The reversal of 22908425 is 52480922.

It can be written as a sum of positive squares in 3 ways, for example, as 7139584 + 15768841 = 2672^2 + 3971^2 .

It is not a de Polignac number, because 22908425 - 2¹⁴ = 22892041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22908391 and 22908400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 458144 + ... + 458193.

It is an arithmetic number, because the mean of its divisors is an integer number (4734413).

Almost surely, 2^22908425 is an apocalyptic number.

22908425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22908425 is a deficient number, since it is larger than the sum of its proper divisors (5498053).

22908425 is an equidigital number, since it uses as much as digits as its factorization.

22908425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916347 (or 916342 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 22908425 is about 4786.2746473641. The cubic root of 22908425 is about 284.0087653514.

The spelling of 22908425 in words is "twenty-two million, nine hundred eight thousand, four hundred twenty-five".