22036563 has 8 divisors (see below), whose sum is σ = 32646800. Its totient is φ = 14691024.

The previous prime is 22036529. The next prime is 22036579. The reversal of 22036563 is 36563022.

22036563 is a `hidden beast` number, since 2 + 2 + 0 + 3 + 656 + 3 = 666.

It is not a de Polignac number, because 22036563 - 2⁸ = 22036307 is a prime.

It is a super-2 number, since 2×22036563² = 971220217705938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 816169 = 22036563 / (2 + 2 + 0 + 3 + 6 + 5 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22036513) 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, 408058 + ... + 408111.

It is an arithmetic number, because the mean of its divisors is an integer number (4080850).

Almost surely, 2^22036563 is an apocalyptic number.

22036563 is a deficient number, since it is larger than the sum of its proper divisors (10610237).

22036563 is an equidigital number, since it uses as much as digits as its factorization.

22036563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816178 (or 816172 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 22036563 is about 4694.3117706433. The cubic root of 22036563 is about 280.3590758839.

Adding to 22036563 its reverse (36563022), we get a palindrome (58599585).

The spelling of 22036563 in words is "twenty-two million, thirty-six thousand, five hundred sixty-three".