6564225049 has 2 divisors, whose sum is σ = 6564225050. Its totient is φ = 6564225048.

The previous prime is 6564225007. The next prime is 6564225077. The reversal of 6564225049 is 9405224656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6431238025 + 132987024 = 80195^2 + 11532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6564225049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6564224996 and 6564225014.

It is not a weakly prime, because it can be changed into another prime (6564225749) 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, 3282112524 + 3282112525.

It is an arithmetic number, because the mean of its divisors is an integer number (3282112525).

Almost surely, 2^6564225049 is an apocalyptic number.

It is an amenable number.

6564225049 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564225049 is an equidigital number, since it uses as much as digits as its factorization.

6564225049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 6564225049 is about 81019.9052640769. The cubic root of 6564225049 is about 1872.3821290590.

The spelling of 6564225049 in words is "six billion, five hundred sixty-four million, two hundred twenty-five thousand, forty-nine".