500440505 has 4 divisors (see below), whose sum is σ = 600528612. Its totient is φ = 400352400.

The previous prime is 500440459. The next prime is 500440511. The reversal of 500440505 is 505044005.

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 82973881 + 417466624 = 9109^2 + 20432^2 .

It is not a de Polignac number, because 500440505 - 2⁸ = 500440249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50044046 + ... + 50044055.

It is an arithmetic number, because the mean of its divisors is an integer number (150132153).

Almost surely, 2^500440505 is an apocalyptic number.

It is an amenable number.

500440505 is a deficient number, since it is larger than the sum of its proper divisors (100088107).

500440505 is a wasteful number, since it uses less digits than its factorization.

500440505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100088106.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 500440505 is about 22370.5275977121. The cubic root of 500440505 is about 793.9335436007.

The spelling of 500440505 in words is "five hundred million, four hundred forty thousand, five hundred five".