500421220015 has 4 divisors (see below), whose sum is σ = 600505464024. Its totient is φ = 400336976008.

The previous prime is 500421219979. The next prime is 500421220037. The reversal of 500421220015 is 510022124005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510022124005 = 5 ⋅102004424801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500421220015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50042121997 + ... + 50042122006.

It is an arithmetic number, because the mean of its divisors is an integer number (150126366006).

Almost surely, 2^500421220015 is an apocalyptic number.

500421220015 is a deficient number, since it is larger than the sum of its proper divisors (100084244009).

500421220015 is a wasteful number, since it uses less digits than its factorization.

500421220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100084244008.

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 500421220015 in words is "five hundred billion, four hundred twenty-one million, two hundred twenty thousand, fifteen".