22505063 has 24 divisors (see below), whose sum is σ = 28782720. Its totient is φ = 17463600.

The previous prime is 22505047. The next prime is 22505071. The reversal of 22505063 is 36050522.

It is a happy number.

It is not a de Polignac number, because 22505063 - 2⁴ = 22505047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505003) 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, 20888 + ... + 21938.

It is an arithmetic number, because the mean of its divisors is an integer number (1199280).

Almost surely, 2^22505063 is an apocalyptic number.

22505063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22505063 is a deficient number, since it is larger than the sum of its proper divisors (6277657).

22505063 is a wasteful number, since it uses less digits than its factorization.

22505063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 22505063 is about 4743.9501472929. The cubic root of 22505063 is about 282.3319824780.

Adding to 22505063 its reverse (36050522), we get a palindrome (58555585).

The spelling of 22505063 in words is "twenty-two million, five hundred five thousand, sixty-three".