2005522216 has 16 divisors (see below), whose sum is σ = 3852070740. Its totient is φ = 978303360.

The previous prime is 2005522177. The next prime is 2005522223. The reversal of 2005522216 is 6122255002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1965148900 + 40373316 = 44330^2 + 6354^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3056871 + ... + 3057526.

Almost surely, 2^2005522216 is an apocalyptic number.

It is an amenable number.

2005522216 is a deficient number, since it is larger than the sum of its proper divisors (1846548524).

2005522216 is a wasteful number, since it uses less digits than its factorization.

2005522216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114444 (or 6114440 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2005522216 is about 44783.0572426671. The cubic root of 2005522216 is about 1261.0795769722.

Adding to 2005522216 its reverse (6122255002), we get a palindrome (8127777218).

The spelling of 2005522216 in words is "two billion, five million, five hundred twenty-two thousand, two hundred sixteen".