22032005 has 4 divisors (see below), whose sum is σ = 26438412. Its totient is φ = 17625600.

The previous prime is 22031993. The next prime is 22032007. The reversal of 22032005 is 50023022.

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 3378244 + 18653761 = 1838^2 + 4319^2 .

It is not a de Polignac number, because 22032005 - 2¹⁴ = 22015621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22032007) 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, 2203196 + ... + 2203205.

It is an arithmetic number, because the mean of its divisors is an integer number (6609603).

Almost surely, 2^22032005 is an apocalyptic number.

It is an amenable number.

22032005 is a deficient number, since it is larger than the sum of its proper divisors (4406407).

22032005 is an equidigital number, since it uses as much as digits as its factorization.

22032005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406406.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 22032005 is about 4693.8262643605. The cubic root of 22032005 is about 280.3397449083.

Adding to 22032005 its reverse (50023022), we get a palindrome (72055027).

The spelling of 22032005 in words is "twenty-two million, thirty-two thousand, five".