22540533 has 8 divisors (see below), whose sum is σ = 30139200. Its totient is φ = 14984448.

The previous prime is 22540519. The next prime is 22540547. The reversal of 22540533 is 33504522.

It is an interprime number because it is at equal distance from previous prime (22540519) and next prime (22540547).

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

It is not a de Polignac number, because 22540533 - 2⁵ = 22540501 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22560533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9388 + ... + 11541.

It is an arithmetic number, because the mean of its divisors is an integer number (3767400).

Almost surely, 2^22540533 is an apocalyptic number.

It is an amenable number.

22540533 is a deficient number, since it is larger than the sum of its proper divisors (7598667).

22540533 is a wasteful number, since it uses less digits than its factorization.

22540533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21291.

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

The square root of 22540533 is about 4747.6871211149. The cubic root of 22540533 is about 282.4802314723.

The spelling of 22540533 in words is "twenty-two million, five hundred forty thousand, five hundred thirty-three".