500050499989 has 4 divisors (see below), whose sum is σ = 500126490540. Its totient is φ = 499974509440.

The previous prime is 500050499953. The next prime is 500050500007. The reversal of 500050499989 is 989994050005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 359100562500 + 140949937489 = 599250^2 + 375433^2 .

It is a cyclic number.

It is not a de Polignac number, because 500050499989 - 2²¹ = 500048402837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500050499939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37985404 + ... + 37998565.

It is an arithmetic number, because the mean of its divisors is an integer number (125031622635).

Almost surely, 2^500050499989 is an apocalyptic number.

It is an amenable number.

500050499989 is a deficient number, since it is larger than the sum of its proper divisors (75990551).

500050499989 is an equidigital number, since it uses as much as digits as its factorization.

500050499989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75990550.

The product of its (nonzero) digits is 5248800, while the sum is 58.

The spelling of 500050499989 in words is "five hundred billion, fifty million, four hundred ninety-nine thousand, nine hundred eighty-nine".