82511216 has 10 divisors (see below), whose sum is σ = 159865512. Its totient is φ = 41255600.

The previous prime is 82511153. The next prime is 82511227. The reversal of 82511216 is 61211528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578460 + ... + 2578491.

Almost surely, 2^82511216 is an apocalyptic number.

It is an amenable number.

82511216 is a deficient number, since it is larger than the sum of its proper divisors (77354296).

82511216 is a wasteful number, since it uses less digits than its factorization.

82511216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156959 (or 5156953 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 82511216 is about 9083.5684617886. The cubic root of 82511216 is about 435.3491115612.

The spelling of 82511216 in words is "eighty-two million, five hundred eleven thousand, two hundred sixteen".