8257810828325 has 12 divisors (see below), whose sum is σ = 10267137678468. Its totient is φ = 6588537532800.

The previous prime is 8257810828303. The next prime is 8257810828327. The reversal of 8257810828325 is 5238280187528.

It can be written as a sum of positive squares in 6 ways, for example, as 205144679041 + 8052666149284 = 452929^2 + 2837722^2 .

It is not a de Polignac number, because 8257810828325 - 2¹² = 8257810824229 is a prime.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257810828327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442768736 + ... + 442787385.

It is an arithmetic number, because the mean of its divisors is an integer number (855594806539).

Almost surely, 2^{8257810828325} is an apocalyptic number.

It is an amenable number.

8257810828325 is a deficient number, since it is larger than the sum of its proper divisors (2009326850143).

8257810828325 is a wasteful number, since it uses less digits than its factorization.

8257810828325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885556504 (or 885556499 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 59.

The spelling of 8257810828325 in words is "eight trillion, two hundred fifty-seven billion, eight hundred ten million, eight hundred twenty-eight thousand, three hundred twenty-five".