22533689 has 2 divisors, whose sum is σ = 22533690. Its totient is φ = 22533688.

The previous prime is 22533659. The next prime is 22533697. The reversal of 22533689 is 98633522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18207289 + 4326400 = 4267^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 22533689 - 2¹² = 22529593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22533649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11266844 + 11266845.

It is an arithmetic number, because the mean of its divisors is an integer number (11266845).

Almost surely, 2^22533689 is an apocalyptic number.

It is an amenable number.

22533689 is a deficient number, since it is larger than the sum of its proper divisors (1).

22533689 is an equidigital number, since it uses as much as digits as its factorization.

22533689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 22533689 is about 4746.9662943821. The cubic root of 22533689 is about 282.4516386789.

The spelling of 22533689 in words is "twenty-two million, five hundred thirty-three thousand, six hundred eighty-nine".