2216551 has 2 divisors, whose sum is σ = 2216552. Its totient is φ = 2216550.

The previous prime is 2216519. The next prime is 2216563. The reversal of 2216551 is 1556122.

2216551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2216551 - 2⁵ = 2216519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108275 + 1108276.

It is an arithmetic number, because the mean of its divisors is an integer number (1108276).

2^2216551 is an apocalyptic number.

2216551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216551 is an equidigital number, since it uses as much as digits as its factorization.

2216551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 2216551 is about 1488.8085840698. The cubic root of 2216551 is about 130.3844830483.

The spelling of 2216551 in words is "two million, two hundred sixteen thousand, five hundred fifty-one".