500272021 has 4 divisors (see below), whose sum is σ = 500478912. Its totient is φ = 500065132.

The previous prime is 500271983. The next prime is 500272043. The reversal of 500272021 is 120272005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500272021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 500272021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500272051) 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, 99775 + ... + 104668.

It is an arithmetic number, because the mean of its divisors is an integer number (125119728).

Almost surely, 2^500272021 is an apocalyptic number.

It is an amenable number.

500272021 is a deficient number, since it is larger than the sum of its proper divisors (206891).

500272021 is a wasteful number, since it uses less digits than its factorization.

500272021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206890.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 500272021 is about 22366.7615224019. The cubic root of 500272021 is about 793.8444353635.

The spelling of 500272021 in words is "five hundred million, two hundred seventy-two thousand, twenty-one".