80002500 has 60 divisors (see below), whose sum is σ = 233287824. Its totient is φ = 21332000.

The previous prime is 80002499. The next prime is 80002511. The reversal of 80002500 is 520008.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 80002500.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2167 + ... + 12833.

Almost surely, 2^80002500 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 80002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116643912).

80002500 is an abundant number, since it is smaller than the sum of its proper divisors (153285324).

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

80002500 is a wasteful number, since it uses less digits than its factorization.

80002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10694 (or 10677 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 80002500 is about 8944.4116631559. The cubic root of 80002500 is about 430.8914263652.

Adding to 80002500 its reverse (520008), we get a palindrome (80522508).

The spelling of 80002500 in words is "eighty million, two thousand, five hundred".