500020043 has 4 divisors (see below), whose sum is σ = 501504120. Its totient is φ = 498535968.

The previous prime is 500020033. The next prime is 500020061. The reversal of 500020043 is 340020005.

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

It is a cyclic number.

It is not a de Polignac number, because 500020043 - 2¹⁴ = 500003659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500020033) 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, 741533 + ... + 742206.

It is an arithmetic number, because the mean of its divisors is an integer number (125376030).

Almost surely, 2^500020043 is an apocalyptic number.

500020043 is a deficient number, since it is larger than the sum of its proper divisors (1484077).

500020043 is a wasteful number, since it uses less digits than its factorization.

500020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484076.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 500020043 is about 22361.1279456113. The cubic root of 500020043 is about 793.7111312688.

Adding to 500020043 its reverse (340020005), we get a palindrome (840040048).

The spelling of 500020043 in words is "five hundred million, twenty thousand, forty-three".