82855751 has 32 divisors (see below), whose sum is σ = 99160320. Its totient is φ = 68428800.

The previous prime is 82855727. The next prime is 82855757. The reversal of 82855751 is 15755828.

It is a de Polignac number, because none of the positive numbers 2^k-82855751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82855699 and 82855708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82855757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854135 + ... + 854231.

It is an arithmetic number, because the mean of its divisors is an integer number (3098760).

Almost surely, 2^82855751 is an apocalyptic number.

82855751 is a deficient number, since it is larger than the sum of its proper divisors (16304569).

82855751 is a wasteful number, since it uses less digits than its factorization.

82855751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its digits is 112000, while the sum is 41.

The square root of 82855751 is about 9102.5134440988. The cubic root of 82855751 is about 435.9542200762.

The spelling of 82855751 in words is "eighty-two million, eight hundred fifty-five thousand, seven hundred fifty-one".