8500921250 has 20 divisors (see below), whose sum is σ = 15934129134. Its totient is φ = 3400368000.

The previous prime is 8500921243. The next prime is 8500921259. The reversal of 8500921250 is 521290058.

It can be written as a sum of positive squares in 5 ways, for example, as 435264769 + 8065656481 = 20863^2 + 89809^2 .

It is not an unprimeable number, because it can be changed into a prime (8500921259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3399119 + ... + 3401618.

Almost surely, 2^8500921250 is an apocalyptic number.

8500921250 is a deficient number, since it is larger than the sum of its proper divisors (7433207884).

8500921250 is an equidigital number, since it uses as much as digits as its factorization.

8500921250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800759 (or 6800744 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 8500921250 is about 92200.4406171684. The cubic root of 8500921250 is about 2040.9012781925.

The spelling of 8500921250 in words is "eight billion, five hundred million, nine hundred twenty-one thousand, two hundred fifty".