80517080 has 64 divisors (see below), whose sum is σ = 208008000. Its totient is φ = 27477504.

The previous prime is 80517061. The next prime is 80517097. The reversal of 80517080 is 8071508.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74786 + ... + 75854.

It is an arithmetic number, because the mean of its divisors is an integer number (3250125).

Almost surely, 2^80517080 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 80517080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104004000).

80517080 is an abundant number, since it is smaller than the sum of its proper divisors (127490920).

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

80517080 is a wasteful number, since it uses less digits than its factorization.

80517080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 80517080 is about 8973.1310031672. The cubic root of 80517080 is about 431.8132909444.

Adding to 80517080 its reverse (8071508), we get a palindrome (88588588).

The spelling of 80517080 in words is "eighty million, five hundred seventeen thousand, eighty".