82565575 has 12 divisors (see below), whose sum is σ = 102839400. Its totient is φ = 65756960.

The previous prime is 82565563. The next prime is 82565591. The reversal of 82565575 is 57556528.

It is not a de Polignac number, because 82565575 - 2⁵ = 82565543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1600 + ... + 12949.

It is an arithmetic number, because the mean of its divisors is an integer number (8569950).

Almost surely, 2^82565575 is an apocalyptic number.

82565575 is a deficient number, since it is larger than the sum of its proper divisors (20273825).

82565575 is a wasteful number, since it uses less digits than its factorization.

82565575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14786 (or 14781 counting only the distinct ones).

The product of its digits is 420000, while the sum is 43.

The square root of 82565575 is about 9086.5601302143. The cubic root of 82565575 is about 435.4446943134. Note that the first 3 decimals are identical.

It can be divided in two parts, 8256 and 5575, that added together give a palindrome (13831).

The spelling of 82565575 in words is "eighty-two million, five hundred sixty-five thousand, five hundred seventy-five".