80505300 has 72 divisors (see below), whose sum is σ = 234873856. Its totient is φ = 21288960.

The previous prime is 80505281. The next prime is 80505301. The reversal of 80505300 is 350508.

It is a super-2 number, since 2×80505300² = 12962206656180000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80505301) 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 23 ways as a sum of consecutive naturals, for example, 37044 + ... + 39156.

Almost surely, 2^80505300 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 80505300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117436928).

80505300 is an abundant number, since it is smaller than the sum of its proper divisors (154368556).

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

80505300 is a wasteful number, since it uses less digits than its factorization.

80505300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 80505300 is about 8972.4745750545. The cubic root of 80505300 is about 431.7922311946.

Adding to 80505300 its reverse (350508), we get a palindrome (80855808).

The spelling of 80505300 in words is "eighty million, five hundred five thousand, three hundred".