8455445563 has 2 divisors, whose sum is σ = 8455445564. Its totient is φ = 8455445562.

The previous prime is 8455445513. The next prime is 8455445573. The reversal of 8455445563 is 3655445548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8455445563 - 2¹³ = 8455437371 is a prime.

It is not a weakly prime, because it can be changed into another prime (8455445513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227722781 + 4227722782.

It is an arithmetic number, because the mean of its divisors is an integer number (4227722782).

Almost surely, 2^8455445563 is an apocalyptic number.

8455445563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8455445563 is an equidigital number, since it uses as much as digits as its factorization.

8455445563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760000, while the sum is 49.

The square root of 8455445563 is about 91953.4967415595. The cubic root of 8455445563 is about 2037.2555015836.

The spelling of 8455445563 in words is "eight billion, four hundred fifty-five million, four hundred forty-five thousand, five hundred sixty-three".