80500518 has 24 divisors (see below), whose sum is σ = 199334928. Its totient is φ = 23000112.

The previous prime is 80500517. The next prime is 80500523. The reversal of 80500518 is 81500508.

It is a junction number, because it is equal to n+sod(n) for n = 80500491 and 80500500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80500517) 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 11 ways as a sum of consecutive naturals, for example, 319321 + ... + 319572.

It is an arithmetic number, because the mean of its divisors is an integer number (8305622).

Almost surely, 2^80500518 is an apocalyptic number.

80500518 is an abundant number, since it is smaller than the sum of its proper divisors (118834410).

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

80500518 is a wasteful number, since it uses less digits than its factorization.

80500518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638908 (or 638905 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 80500518 is about 8972.2080894282. The cubic root of 80500518 is about 431.7836815657.

It can be divided in two parts, 80500 and 518, that added together give a palindrome (81018).

The spelling of 80500518 in words is "eighty million, five hundred thousand, five hundred eighteen".