80500056 has 256 divisors, whose sum is σ = 270950400. Its totient is φ = 19353600.

The previous prime is 80500051. The next prime is 80500073. The reversal of 80500056 is 65000508.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 80499999 and 80500035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80500051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1963396 + ... + 1963436.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^80500056 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 80500056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135475200).

80500056 is an abundant number, since it is smaller than the sum of its proper divisors (190450344).

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

80500056 is a wasteful number, since it uses less digits than its factorization.

80500056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 80500056 is about 8972.1823432206. The cubic root of 80500056 is about 431.7828555484.

The spelling of 80500056 in words is "eighty million, five hundred thousand, fifty-six".