500000080 has 40 divisors (see below), whose sum is σ = 1174502952. Its totient is φ = 197935104.

The previous prime is 500000077. The next prime is 500000089. The reversal of 500000080 is 80000005.

It can be written as a sum of positive squares in 4 ways, for example, as 35856144 + 464143936 = 5988^2 + 21544^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 500000080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24457 + ... + 39976.

Almost surely, 2^500000080 is an apocalyptic number.

It is an amenable number.

500000080 is an abundant number, since it is smaller than the sum of its proper divisors (674502872).

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

500000080 is a wasteful number, since it uses less digits than its factorization.

500000080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64543 (or 64537 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 500000080 is about 22360.6815638522. The cubic root of 500000080 is about 793.7005683148.

Adding to 500000080 its reverse (80000005), we get a palindrome (580000085).

It can be divided in two parts, 5000000 and 80, that multiplied together give a square (400000000 = 20000²).

The spelling of 500000080 in words is "five hundred million, eighty", and thus it is an aban number.