506040424221 has 8 divisors (see below), whose sum is σ = 674805329440. Its totient is φ = 337317900912.

The previous prime is 506040424193. The next prime is 506040424247. The reversal of 506040424221 is 122424040605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 506040424221 - 2⁵ = 506040424189 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 (506040423221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10567606 + ... + 10615383.

It is an arithmetic number, because the mean of its divisors is an integer number (84350666180).

Almost surely, 2^506040424221 is an apocalyptic number.

It is an amenable number.

506040424221 is a deficient number, since it is larger than the sum of its proper divisors (168764905219).

506040424221 is a wasteful number, since it uses less digits than its factorization.

506040424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21190955.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 506040424221 its reverse (122424040605), we get a palindrome (628464464826).

The spelling of 506040424221 in words is "five hundred six billion, forty million, four hundred twenty-four thousand, two hundred twenty-one".