82505782755 has 24 divisors (see below), whose sum is σ = 156010935600. Its totient is φ = 40002803520.

The previous prime is 82505782741. The next prime is 82505782811. The reversal of 82505782755 is 55728750528.

82505782755 is a `hidden beast` number, since 8 + 2 + 505 + 7 + 82 + 7 + 55 = 666.

It is not a de Polignac number, because 82505782755 - 2⁹ = 82505782243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83338680 + ... + 83339669.

It is an arithmetic number, because the mean of its divisors is an integer number (6500455650).

Almost surely, 2^82505782755 is an apocalyptic number.

82505782755 is a deficient number, since it is larger than the sum of its proper divisors (73505152845).

82505782755 is a wasteful number, since it uses less digits than its factorization.

82505782755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166678371 (or 166678368 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 82505782755 in words is "eighty-two billion, five hundred five million, seven hundred eighty-two thousand, seven hundred fifty-five".