22533265 has 4 divisors (see below), whose sum is σ = 27039924. Its totient is φ = 18026608.

The previous prime is 22533253. The next prime is 22533271. The reversal of 22533265 is 56233522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56233522 = 2 ⋅28116761.

It can be written as a sum of positive squares in 2 ways, for example, as 16613776 + 5919489 = 4076^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 22533265 - 2¹¹ = 22531217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2253322 + ... + 2253331.

It is an arithmetic number, because the mean of its divisors is an integer number (6759981).

Almost surely, 2^22533265 is an apocalyptic number.

It is an amenable number.

22533265 is a deficient number, since it is larger than the sum of its proper divisors (4506659).

22533265 is an equidigital number, since it uses as much as digits as its factorization.

22533265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506658.

The product of its digits is 10800, while the sum is 28.

The square root of 22533265 is about 4746.9216340698. The cubic root of 22533265 is about 282.4498671056.

Adding to 22533265 its reverse (56233522), we get a palindrome (78766787).

The spelling of 22533265 in words is "twenty-two million, five hundred thirty-three thousand, two hundred sixty-five".