8455445513 has 2 divisors, whose sum is σ = 8455445514. Its totient is φ = 8455445512.

The previous prime is 8455445491. The next prime is 8455445563. The reversal of 8455445513 is 3155445548.

8455445513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6900957184 + 1554488329 = 83072^2 + 39427^2 .

It is a cyclic number.

It is not a de Polignac number, because 8455445513 - 2¹⁰ = 8455444489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8455445563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227722756 + 4227722757.

It is an arithmetic number, because the mean of its divisors is an integer number (4227722757).

Almost surely, 2^8455445513 is an apocalyptic number.

It is an amenable number.

8455445513 is a deficient number, since it is larger than the sum of its proper divisors (1).

8455445513 is an equidigital number, since it uses as much as digits as its factorization.

8455445513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960000, while the sum is 44.

The square root of 8455445513 is about 91953.4964696830. The cubic root of 8455445513 is about 2037.2554975679.

The spelling of 8455445513 in words is "eight billion, four hundred fifty-five million, four hundred forty-five thousand, five hundred thirteen".