80501280 has 48 divisors (see below), whose sum is σ = 253580544. Its totient is φ = 21466880.

The previous prime is 80501257. The next prime is 80501287. The reversal of 80501280 is 8210508.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a self number, because there is not a number n which added to its sum of digits gives 80501280.

It is not an unprimeable number, because it can be changed into a prime (80501287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83376 + ... + 84335.

It is an arithmetic number, because the mean of its divisors is an integer number (5282928).

Almost surely, 2^80501280 is an apocalyptic number.

80501280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80501280 is an abundant number, since it is smaller than the sum of its proper divisors (173079264).

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

80501280 is a wasteful number, since it uses less digits than its factorization.

80501280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167729 (or 167721 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 80501280 is about 8972.2505537908. The cubic root of 80501280 is about 431.7850439508.

Adding to 80501280 its reverse (8210508), we get a palindrome (88711788).

The spelling of 80501280 in words is "eighty million, five hundred one thousand, two hundred eighty".