8785216025 has 12 divisors (see below), whose sum is σ = 11042898492. Its totient is φ = 6931895040.

The previous prime is 8785216019. The next prime is 8785216039. The reversal of 8785216025 is 5206125878.

It can be written as a sum of positive squares in 6 ways, for example, as 434180569 + 8351035456 = 20837^2 + 91384^2 .

It is not a de Polignac number, because 8785216025 - 2⁶ = 8785215961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2405084 + ... + 2408733.

It is an arithmetic number, because the mean of its divisors is an integer number (920241541).

Almost surely, 2^8785216025 is an apocalyptic number.

It is an amenable number.

8785216025 is a deficient number, since it is larger than the sum of its proper divisors (2257682467).

8785216025 is a wasteful number, since it uses less digits than its factorization.

8785216025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813900 (or 4813895 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 8785216025 is about 93729.4832216630. The cubic root of 8785216025 is about 2063.4034310896.

The spelling of 8785216025 in words is "eight billion, seven hundred eighty-five million, two hundred sixteen thousand, twenty-five".