8505752563 has 24 divisors (see below), whose sum is σ = 10806718464. Its totient is φ = 6620014800.

The previous prime is 8505752561. The next prime is 8505752581. The reversal of 8505752563 is 3652575058.

It is a happy number.

It is not a de Polignac number, because 8505752563 - 2¹ = 8505752561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8505752561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469198 + ... + 486988.

It is an arithmetic number, because the mean of its divisors is an integer number (450279936).

Almost surely, 2^8505752563 is an apocalyptic number.

8505752563 is a deficient number, since it is larger than the sum of its proper divisors (2300965901).

8505752563 is a wasteful number, since it uses less digits than its factorization.

8505752563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18703 (or 18696 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The square root of 8505752563 is about 92226.6369494193. The cubic root of 8505752563 is about 2041.2878388654.

The spelling of 8505752563 in words is "eight billion, five hundred five million, seven hundred fifty-two thousand, five hundred sixty-three".