500045421 has 4 divisors (see below), whose sum is σ = 666727232. Its totient is φ = 333363612.

The previous prime is 500045353. The next prime is 500045423. The reversal of 500045421 is 124540005.

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 not a de Polignac number, because 500045421 - 2¹⁰ = 500044397 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 (500045423) by changing a digit.

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, 83340901 + ... + 83340906.

It is an arithmetic number, because the mean of its divisors is an integer number (166681808).

Almost surely, 2^500045421 is an apocalyptic number.

It is an amenable number.

500045421 is a deficient number, since it is larger than the sum of its proper divisors (166681811).

500045421 is a wasteful number, since it uses less digits than its factorization.

500045421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166681810.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 500045421 is about 22361.6953963692. The cubic root of 500045421 is about 793.7245590374.

Adding to 500045421 its reverse (124540005), we get a palindrome (624585426).

The spelling of 500045421 in words is "five hundred million, forty-five thousand, four hundred twenty-one".