22800065 has 4 divisors (see below), whose sum is σ = 27360084. Its totient is φ = 18240048.

The previous prime is 22800053. The next prime is 22800067. The reversal of 22800065 is 56000822.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 18671041 = 2032^2 + 4321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22800065 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22800065.

It is not an unprimeable number, because it can be changed into a prime (22800067) 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, 2280002 + ... + 2280011.

It is an arithmetic number, because the mean of its divisors is an integer number (6840021).

Almost surely, 2^22800065 is an apocalyptic number.

It is an amenable number.

22800065 is a deficient number, since it is larger than the sum of its proper divisors (4560019).

22800065 is an equidigital number, since it uses as much as digits as its factorization.

22800065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560018.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 22800065 is about 4774.9413608965. The cubic root of 22800065 is about 283.5602572682.

Adding to 22800065 its reverse (56000822), we get a palindrome (78800887).

The spelling of 22800065 in words is "twenty-two million, eight hundred thousand, sixty-five".