22533845 has 8 divisors (see below), whose sum is σ = 27179064. Its totient is φ = 17934784.

The previous prime is 22533839. The next prime is 22533853. The reversal of 22533845 is 54833522.

It can be written as a sum of positive squares in 4 ways, for example, as 13010449 + 9523396 = 3607^2 + 3086^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22533845 - 2¹⁸ = 22271701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10454 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (3397383).

Almost surely, 2^22533845 is an apocalyptic number.

It is an amenable number.

22533845 is a deficient number, since it is larger than the sum of its proper divisors (4645219).

22533845 is a wasteful number, since it uses less digits than its factorization.

22533845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23079.

The product of its digits is 28800, while the sum is 32.

The square root of 22533845 is about 4746.9827259007. The cubic root of 22533845 is about 282.4522904786.

The spelling of 22533845 in words is "twenty-two million, five hundred thirty-three thousand, eight hundred forty-five".