22203425 has 12 divisors (see below), whose sum is σ = 27676800. Its totient is φ = 17669520.

The previous prime is 22203421. The next prime is 22203431. The reversal of 22203425 is 52430222.

It is not a de Polignac number, because 22203425 - 2² = 22203421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22203397 and 22203406.

It is not an unprimeable number, because it can be changed into a prime (22203421) 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, 2744 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (2306400).

Almost surely, 2^22203425 is an apocalyptic number.

22203425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22203425 is a deficient number, since it is larger than the sum of its proper divisors (5473375).

22203425 is a wasteful number, since it uses less digits than its factorization.

22203425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4667 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22203425 is about 4712.0510396217. The cubic root of 22203425 is about 281.0649284494.

Adding to 22203425 its reverse (52430222), we get a palindrome (74633647).

The spelling of 22203425 in words is "twenty-two million, two hundred three thousand, four hundred twenty-five".