8505752520 has 64 divisors (see below), whose sum is σ = 25523320320. Its totient is φ = 2267661824.

The previous prime is 8505752509. The next prime is 8505752527. The reversal of 8505752520 is 252575058.

It is not an unprimeable number, because it can be changed into a prime (8505752527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991369 + ... + 999911.

It is an arithmetic number, because the mean of its divisors is an integer number (398801880).

Almost surely, 2^8505752520 is an apocalyptic number.

It is an amenable number.

8505752520 is an abundant number, since it is smaller than the sum of its proper divisors (17017567800).

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

8505752520 is a wasteful number, since it uses less digits than its factorization.

8505752520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16854 (or 16850 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 8505752520 is about 92226.6367162980. The cubic root of 8505752520 is about 2041.2878354256.

The spelling of 8505752520 in words is "eight billion, five hundred five million, seven hundred fifty-two thousand, five hundred twenty".