22561363 has 24 divisors (see below), whose sum is σ = 26878464. Its totient is φ = 18768000.

The previous prime is 22561351. The next prime is 22561393. The reversal of 22561363 is 36316522.

It is not a de Polignac number, because 22561363 - 2²¹ = 20464211 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22561313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149338 + ... + 149488.

It is an arithmetic number, because the mean of its divisors is an integer number (1119936).

Almost surely, 2^22561363 is an apocalyptic number.

22561363 is a deficient number, since it is larger than the sum of its proper divisors (4317101).

22561363 is a wasteful number, since it uses less digits than its factorization.

22561363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 226 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 22561363 is about 4749.8803142816. The cubic root of 22561363 is about 282.5672192355.

Adding to 22561363 its reverse (36316522), we get a palindrome (58877885).

The spelling of 22561363 in words is "twenty-two million, five hundred sixty-one thousand, three hundred sixty-three".