82505205725005 has 48 divisors (see below), whose sum is σ = 116327305751040. Its totient is φ = 55028079800064.

The previous prime is 82505205724999. The next prime is 82505205725069. The reversal of 82505205725005 is 50052750250528.

It is not a de Polignac number, because 82505205725005 - 2²¹ = 82505203627853 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, 12799729 + ... + 18134041.

It is an arithmetic number, because the mean of its divisors is an integer number (2423485536480).

Almost surely, 2^{82505205725005} is an apocalyptic number.

It is an amenable number.

82505205725005 is a deficient number, since it is larger than the sum of its proper divisors (33822100026035).

82505205725005 is a wasteful number, since it uses less digits than its factorization.

82505205725005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334650 (or 5334607 counting only the distinct ones).

The product of its (nonzero) digits is 1400000, while the sum is 46.

The spelling of 82505205725005 in words is "eighty-two trillion, five hundred five billion, two hundred five million, seven hundred twenty-five thousand, five".