8280515825 has 12 divisors (see below), whose sum is σ = 10545349980. Its totient is φ = 6445373760.

The previous prime is 8280515819. The next prime is 8280515849. The reversal of 8280515825 is 5285150828.

It can be written as a sum of positive squares in 6 ways, for example, as 373571584 + 7906944241 = 19328^2 + 88921^2 .

It is not a de Polignac number, because 8280515825 - 2¹⁶ = 8280450289 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4475030 + ... + 4476879.

It is an arithmetic number, because the mean of its divisors is an integer number (878779165).

Almost surely, 2^8280515825 is an apocalyptic number.

It is an amenable number.

8280515825 is a deficient number, since it is larger than the sum of its proper divisors (2264834155).

8280515825 is a wasteful number, since it uses less digits than its factorization.

8280515825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951956 (or 8951951 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 44.

The square root of 8280515825 is about 90997.3396589153. The cubic root of 8280515825 is about 2023.1082938222.

The spelling of 8280515825 in words is "eight billion, two hundred eighty million, five hundred fifteen thousand, eight hundred twenty-five".