80318500 has 24 divisors (see below), whose sum is σ = 175416696. Its totient is φ = 32127200.

The previous prime is 80318449. The next prime is 80318521. The reversal of 80318500 is 581308.

It can be written as a sum of positive squares in 4 ways, for example, as 13307904 + 67010596 = 3648^2 + 8186^2 .

It is a super-2 number, since 2×80318500² = 12902122884500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79819 + ... + 80818.

It is an arithmetic number, because the mean of its divisors is an integer number (7309029).

Almost surely, 2^80318500 is an apocalyptic number.

It is an amenable number.

80318500 is an abundant number, since it is smaller than the sum of its proper divisors (95098196).

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

80318500 is a wasteful number, since it uses less digits than its factorization.

80318500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160656 (or 160644 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 80318500 is about 8962.0589152270. The cubic root of 80318500 is about 431.4580036978.

Adding to 80318500 its reverse (581308), we get a palindrome (80899808).

The spelling of 80318500 in words is "eighty million, three hundred eighteen thousand, five hundred".