8553563268 has 48 divisors (see below), whose sum is σ = 20435095296. Its totient is φ = 2783158560.

The previous prime is 8553563261. The next prime is 8553563281. The reversal of 8553563268 is 8623653558.

It is a self number, because there is not a number n which added to its sum of digits gives 8553563268.

It is not an unprimeable number, because it can be changed into a prime (8553563261) 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, 1033555 + ... + 1041797.

It is an arithmetic number, because the mean of its divisors is an integer number (425731152).

Almost surely, 2^8553563268 is an apocalyptic number.

It is an amenable number.

8553563268 is an abundant number, since it is smaller than the sum of its proper divisors (11881532028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8553563268 is a wasteful number, since it uses less digits than its factorization.

8553563268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10304 (or 10302 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 51.

The square root of 8553563268 is about 92485.4759840701. The cubic root of 8553563268 is about 2045.1053775681.

The spelling of 8553563268 in words is "eight billion, five hundred fifty-three million, five hundred sixty-three thousand, two hundred sixty-eight".