8516212245025 has 9 divisors (see below), whose sum is σ = 10560121277043. Its totient is φ = 6812958123000.

The previous prime is 8516212245001. The next prime is 8516212245067. The reversal of 8516212245025 is 5205422126158.

The square root of 8516212245025 is 2918255.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3065836408209 + 5450375836816 = 1750953^2 + 2334604^2 .

It is not a de Polignac number, because 8516212245025 - 2²⁹ = 8515675374113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 14299450 + ... + 14883100.

Almost surely, 2^{8516212245025} is an apocalyptic number.

8516212245025 is the 2918255-th square number.

8516212245025 is the 1459128-th centered octagonal number.

It is an amenable number.

8516212245025 is a deficient number, since it is larger than the sum of its proper divisors (2043909032018).

8516212245025 is an frugal number, since it uses more digits than its factorization.

8516212245025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167312 (or 583656 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 8516212245025 in words is "eight trillion, five hundred sixteen billion, two hundred twelve million, two hundred forty-five thousand, twenty-five".