500054421321 has 64 divisors (see below), whose sum is σ = 912075171840. Its totient is φ = 263679624000.

The previous prime is 500054421299. The next prime is 500054421367. The reversal of 500054421321 is 123124450005.

It is not a de Polignac number, because 500054421321 - 2⁹ = 500054420809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (500054421721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7956406 + ... + 8019008.

It is an arithmetic number, because the mean of its divisors is an integer number (14251174560).

Almost surely, 2^500054421321 is an apocalyptic number.

It is an amenable number.

500054421321 is a deficient number, since it is larger than the sum of its proper divisors (412020750519).

500054421321 is a wasteful number, since it uses less digits than its factorization.

500054421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65883 (or 65877 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 500054421321 its reverse (123124450005), we get a palindrome (623178871326).

The spelling of 500054421321 in words is "five hundred billion, fifty-four million, four hundred twenty-one thousand, three hundred twenty-one".