82556538 has 8 divisors (see below), whose sum is σ = 165113088. Its totient is φ = 27518844.

The previous prime is 82556521. The next prime is 82556549. The reversal of 82556538 is 83565528.

It is a sphenic number, since it is the product of 3 distinct primes.

82556538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 82556538.

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 3 ways as a sum of consecutive naturals, for example, 6879706 + ... + 6879717.

It is an arithmetic number, because the mean of its divisors is an integer number (20639136).

Almost surely, 2^82556538 is an apocalyptic number.

82556538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82556538 is a wasteful number, since it uses less digits than its factorization.

82556538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759428.

The product of its digits is 288000, while the sum is 42.

The square root of 82556538 is about 9086.0628437184. The cubic root of 82556538 is about 435.4288069120.

The spelling of 82556538 in words is "eighty-two million, five hundred fifty-six thousand, five hundred thirty-eight".