22533225 has 72 divisors (see below), whose sum is σ = 44330496. Its totient is φ = 10032000.

The previous prime is 22533223. The next prime is 22533253. The reversal of 22533225 is 52233522.

It is not a de Polignac number, because 22533225 - 2¹ = 22533223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22533195 and 22533204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22533223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 117880 + ... + 118070.

Almost surely, 2^22533225 is an apocalyptic number.

22533225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22533225 is a deficient number, since it is larger than the sum of its proper divisors (21797271).

22533225 is a wasteful number, since it uses less digits than its factorization.

22533225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 223 counting only the distinct ones).

The product of its digits is 3600, while the sum is 24.

The square root of 22533225 is about 4746.9174208111. The cubic root of 22533225 is about 282.4496999749.

Adding to 22533225 its reverse (52233522), we get a palindrome (74766747).

The spelling of 22533225 in words is "twenty-two million, five hundred thirty-three thousand, two hundred twenty-five".