80856056 has 16 divisors (see below), whose sum is σ = 152515440. Its totient is φ = 40185280.

The previous prime is 80856047. The next prime is 80856067. The reversal of 80856056 is 65065808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28925 + ... + 31596.

It is an arithmetic number, because the mean of its divisors is an integer number (9532215).

Almost surely, 2^80856056 is an apocalyptic number.

It is an amenable number.

80856056 is a deficient number, since it is larger than the sum of its proper divisors (71659384).

80856056 is a wasteful number, since it uses less digits than its factorization.

80856056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60694 (or 60690 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 80856056 is about 8991.9995551601. Note that the first 3 decimals coincide. The cubic root of 80856056 is about 432.4184189071.

It can be divided in two parts, 8085 and 6056, that added together give a palindrome (14141).

The spelling of 80856056 in words is "eighty million, eight hundred fifty-six thousand, fifty-six".