82256585 has 4 divisors (see below), whose sum is σ = 98707908. Its totient is φ = 65805264.

The previous prime is 82256563. The next prime is 82256597. The reversal of 82256585 is 58565228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32398864 + 49857721 = 5692^2 + 7061^2 .

It is a cyclic number.

It is not a de Polignac number, because 82256585 - 2⁸ = 82256329 is a prime.

It is a super-2 number, since 2×82256585² = 13532291551724450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8225654 + ... + 8225663.

It is an arithmetic number, because the mean of its divisors is an integer number (24676977).

Almost surely, 2^82256585 is an apocalyptic number.

It is an amenable number.

82256585 is a deficient number, since it is larger than the sum of its proper divisors (16451323).

82256585 is a wasteful number, since it uses less digits than its factorization.

82256585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16451322.

The product of its digits is 192000, while the sum is 41.

The square root of 82256585 is about 9069.5416091443. The cubic root of 82256585 is about 434.9008185383.

The spelling of 82256585 in words is "eighty-two million, two hundred fifty-six thousand, five hundred eighty-five".