22023225 has 96 divisors (see below), whose sum is σ = 47616000. Its totient is φ = 9771840.

The previous prime is 22023217. The next prime is 22023227. The reversal of 22023225 is 52232022.

It is not a de Polignac number, because 22023225 - 2³ = 22023217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22023198 and 22023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 278736 + ... + 278814.

It is an arithmetic number, because the mean of its divisors is an integer number (496000).

Almost surely, 2^22023225 is an apocalyptic number.

22023225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22023225 is an abundant number, since it is smaller than the sum of its proper divisors (25592775).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023225 is a wasteful number, since it uses less digits than its factorization.

22023225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22023225 is about 4692.8909000743. The cubic root of 22023225 is about 280.3025004542.

Adding to 22023225 its reverse (52232022), we get a palindrome (74255247).

The spelling of 22023225 in words is "twenty-two million, twenty-three thousand, two hundred twenty-five".