80315500 has 72 divisors (see below), whose sum is σ = 182617344. Its totient is φ = 30856000.

The previous prime is 80315491. The next prime is 80315509. The reversal of 80315500 is 551308.

It is an interprime number because it is at equal distance from previous prime (80315491) and next prime (80315509).

It is not an unprimeable number, because it can be changed into a prime (80315509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420405 + ... + 420595.

It is an arithmetic number, because the mean of its divisors is an integer number (2536352).

Almost surely, 2^80315500 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 80315500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91308672).

80315500 is an abundant number, since it is smaller than the sum of its proper divisors (102301844).

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

80315500 is a wasteful number, since it uses less digits than its factorization.

80315500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 80315500 is about 8961.8915414102. The cubic root of 80315500 is about 431.4526317925.

Adding to 80315500 its reverse (551308), we get a palindrome (80866808).

It can be divided in two parts, 8031 and 5500, that added together give a palindrome (13531).

The spelling of 80315500 in words is "eighty million, three hundred fifteen thousand, five hundred".