2216550889 has 4 divisors (see below), whose sum is σ = 2533201024. Its totient is φ = 1899900756.

The previous prime is 2216550877. The next prime is 2216550901. The reversal of 2216550889 is 9880556122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2216550877) and next prime (2216550901).

It is a cyclic number.

It is not a de Polignac number, because 2216550889 - 2¹⁵ = 2216518121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216550829) 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, 158325057 + ... + 158325070.

It is an arithmetic number, because the mean of its divisors is an integer number (633300256).

Almost surely, 2^2216550889 is an apocalyptic number.

It is an amenable number.

2216550889 is a deficient number, since it is larger than the sum of its proper divisors (316650135).

2216550889 is an equidigital number, since it uses as much as digits as its factorization.

2216550889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316650134.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 2216550889 is about 47080.2600778713. The cubic root of 2216550889 is about 1303.8448087185.

The spelling of 2216550889 in words is "two billion, two hundred sixteen million, five hundred fifty thousand, eight hundred eighty-nine".