6551444227 has 2 divisors, whose sum is σ = 6551444228. Its totient is φ = 6551444226.

The previous prime is 6551444197. The next prime is 6551444239. The reversal of 6551444227 is 7224441556.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6551444227 - 2⁷ = 6551444099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6551444227.

It is not a weakly prime, because it can be changed into another prime (6551444297) by changing a digit.

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 as a sum of consecutive naturals, namely, 3275722113 + 3275722114.

It is an arithmetic number, because the mean of its divisors is an integer number (3275722114).

Almost surely, 2^6551444227 is an apocalyptic number.

6551444227 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551444227 is an equidigital number, since it uses as much as digits as its factorization.

6551444227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 40.

The square root of 6551444227 is about 80940.9922536165. The cubic root of 6551444227 is about 1871.1661372939.

The spelling of 6551444227 in words is "six billion, five hundred fifty-one million, four hundred forty-four thousand, two hundred twenty-seven".