82505572525725 has 48 divisors (see below), whose sum is σ = 140812968107520. Its totient is φ = 42582475641600.

The previous prime is 82505572525709. The next prime is 82505572525729. The reversal of 82505572525725 is 52752527550528.

It is not a de Polignac number, because 82505572525725 - 2⁴ = 82505572525709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82505572525729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99163147 + ... + 99991703.

It is an arithmetic number, because the mean of its divisors is an integer number (2933603502240).

Almost surely, 2^{82505572525725} is an apocalyptic number.

It is an amenable number.

82505572525725 is a deficient number, since it is larger than the sum of its proper divisors (58307395581795).

82505572525725 is a wasteful number, since it uses less digits than its factorization.

82505572525725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871430 (or 871425 counting only the distinct ones).

The product of its (nonzero) digits is 98000000, while the sum is 60.

The spelling of 82505572525725 in words is "eighty-two trillion, five hundred five billion, five hundred seventy-two million, five hundred twenty-five thousand, seven hundred twenty-five".