80056812 has 48 divisors (see below), whose sum is σ = 205132032. Its totient is φ = 24098880.

The previous prime is 80056811. The next prime is 80056819. The reversal of 80056812 is 21865008.

It is a self number, because there is not a number n which added to its sum of digits gives 80056812.

It is not an unprimeable number, because it can be changed into a prime (80056811) 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 15 ways as a sum of consecutive naturals, for example, 18793 + ... + 22655.

It is an arithmetic number, because the mean of its divisors is an integer number (4273584).

Almost surely, 2^80056812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80056812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102566016).

80056812 is an abundant number, since it is smaller than the sum of its proper divisors (125075220).

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

80056812 is a wasteful number, since it uses less digits than its factorization.

80056812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80056812 is about 8947.4472337086. The cubic root of 80056812 is about 430.9889119909.

The spelling of 80056812 in words is "eighty million, fifty-six thousand, eight hundred twelve".