91082508125 has 20 divisors (see below), whose sum is σ = 130076237280. Its totient is φ = 62456574000.

The previous prime is 91082508103. The next prime is 91082508151. The reversal of 91082508125 is 52180528019.

It is not a de Polignac number, because 91082508125 - 2⁸ = 91082507869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10405055 + ... + 10413804.

It is an arithmetic number, because the mean of its divisors is an integer number (6503811864).

Almost surely, 2^91082508125 is an apocalyptic number.

It is an amenable number.

91082508125 is a deficient number, since it is larger than the sum of its proper divisors (38993729155).

91082508125 is an equidigital number, since it uses as much as digits as its factorization.

91082508125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20818886 (or 20818871 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 91082508125 in words is "ninety-one billion, eighty-two million, five hundred eight thousand, one hundred twenty-five".