8855563 has 2 divisors, whose sum is σ = 8855564. Its totient is φ = 8855562.

The previous prime is 8855537. The next prime is 8855569. The reversal of 8855563 is 3655588.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8855563 is a prime.

8855563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8855569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4427781 + 4427782.

It is an arithmetic number, because the mean of its divisors is an integer number (4427782).

Almost surely, 2^8855563 is an apocalyptic number.

8855563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8855563 is an equidigital number, since it uses as much as digits as its factorization.

8855563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 40.

The square root of 8855563 is about 2975.8298002406. The cubic root of 8855563 is about 206.8896313161.

The spelling of 8855563 in words is "eight million, eight hundred fifty-five thousand, five hundred sixty-three".