82511996 has 24 divisors (see below), whose sum is σ = 165236736. Its totient is φ = 35316720.

The previous prime is 82511993. The next prime is 82512013. The reversal of 82511996 is 69911528.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82511993) 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 7 ways as a sum of consecutive naturals, for example, 29081 + ... + 31791.

It is an arithmetic number, because the mean of its divisors is an integer number (6884864).

Almost surely, 2^82511996 is an apocalyptic number.

It is an amenable number.

82511996 is an abundant number, since it is smaller than the sum of its proper divisors (82724740).

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

82511996 is a wasteful number, since it uses less digits than its factorization.

82511996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809 (or 3807 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 82511996 is about 9083.6113963555. The cubic root of 82511996 is about 435.3504833797.

It can be divided in two parts, 825 and 11996, that added together give a palindrome (12821).

The spelling of 82511996 in words is "eighty-two million, five hundred eleven thousand, nine hundred ninety-six".