8955808563 has 16 divisors (see below), whose sum is σ = 13418737920. Its totient is φ = 5271645984.

The previous prime is 8955808553. The next prime is 8955808583. The reversal of 8955808563 is 3658085598.

8955808563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8955808563 - 2⁸ = 8955808307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8955808553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4991193 + ... + 4992986.

It is an arithmetic number, because the mean of its divisors is an integer number (838671120).

Almost surely, 2^8955808563 is an apocalyptic number.

8955808563 is a deficient number, since it is larger than the sum of its proper divisors (4462929357).

8955808563 is a wasteful number, since it uses less digits than its factorization.

8955808563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9984218.

The product of its (nonzero) digits is 10368000, while the sum is 57.

The square root of 8955808563 is about 94635.1338721513. The cubic root of 8955808563 is about 2076.6737210012.

The spelling of 8955808563 in words is "eight billion, nine hundred fifty-five million, eight hundred eight thousand, five hundred sixty-three".