22328563 has 4 divisors (see below), whose sum is σ = 22377880. Its totient is φ = 22279248.

The previous prime is 22328539. The next prime is 22328569. The reversal of 22328563 is 36582322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22328563 is a prime.

It is a super-3 number, since 3×22328563³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22328569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23973 + ... + 24886.

It is an arithmetic number, because the mean of its divisors is an integer number (5594470).

Almost surely, 2^22328563 is an apocalyptic number.

22328563 is a deficient number, since it is larger than the sum of its proper divisors (49317).

22328563 is an equidigital number, since it uses as much as digits as its factorization.

22328563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49316.

The product of its digits is 17280, while the sum is 31.

The square root of 22328563 is about 4725.3108892432. The cubic root of 22328563 is about 281.5919647530.

The spelling of 22328563 in words is "twenty-two million, three hundred twenty-eight thousand, five hundred sixty-three".