22243563 has 6 divisors (see below), whose sum is σ = 32129604. Its totient is φ = 14829036.

The previous prime is 22243541. The next prime is 22243579. The reversal of 22243563 is 36534222.

22243563 is a `hidden beast` number, since 222 + 435 + 6 + 3 = 666.

It is not a de Polignac number, because 22243563 - 2⁶ = 22243499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22243063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235745 + ... + 1235762.

It is an arithmetic number, because the mean of its divisors is an integer number (5354934).

Almost surely, 2^22243563 is an apocalyptic number.

22243563 is a deficient number, since it is larger than the sum of its proper divisors (9886041).

22243563 is a wasteful number, since it uses less digits than its factorization.

22243563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471513 (or 2471510 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22243563 is about 4716.3081960364. The cubic root of 22243563 is about 281.2341905187.

Adding to 22243563 its reverse (36534222), we get a palindrome (58777785).

The spelling of 22243563 in words is "twenty-two million, two hundred forty-three thousand, five hundred sixty-three".