82391825939525 has 48 divisors (see below), whose sum is σ = 102755835497280. Its totient is φ = 65534204736000.

The previous prime is 82391825939513. The next prime is 82391825939543. The reversal of 82391825939525 is 52593952819328.

It is not a de Polignac number, because 82391825939525 - 2⁶ = 82391825939461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4478537627 + ... + 4478556023.

It is an arithmetic number, because the mean of its divisors is an integer number (2140746572860).

Almost surely, 2^{82391825939525} is an apocalyptic number.

It is an amenable number.

82391825939525 is a deficient number, since it is larger than the sum of its proper divisors (20364009557755).

82391825939525 is a wasteful number, since it uses less digits than its factorization.

82391825939525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214 (or 20209 counting only the distinct ones).

The product of its digits is 419904000, while the sum is 71.

The spelling of 82391825939525 in words is "eighty-two trillion, three hundred ninety-one billion, eight hundred twenty-five million, nine hundred thirty-nine thousand, five hundred twenty-five".