22502033 has 4 divisors (see below), whose sum is σ = 23825700. Its totient is φ = 21178368.

The previous prime is 22502021. The next prime is 22502059. The reversal of 22502033 is 33020522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33020522 = 2 ⋅16510261.

It can be written as a sum of positive squares in 2 ways, for example, as 6115729 + 16386304 = 2473^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 22502033 - 2⁸ = 22501777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1323649 = 22502033 / (2 + 2 + 5 + 0 + 2 + 0 + 3 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22502003) by changing a digit.

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, 661808 + ... + 661841.

It is an arithmetic number, because the mean of its divisors is an integer number (5956425).

Almost surely, 2^22502033 is an apocalyptic number.

It is an amenable number.

22502033 is a deficient number, since it is larger than the sum of its proper divisors (1323667).

22502033 is a wasteful number, since it uses less digits than its factorization.

22502033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323666.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 22502033 is about 4743.6307824282. The cubic root of 22502033 is about 282.3193111915.

Adding to 22502033 its reverse (33020522), we get a palindrome (55522555).

The spelling of 22502033 in words is "twenty-two million, five hundred two thousand, thirty-three".