500004314155021 has 4 divisors (see below), whose sum is σ = 538466184474652. Its totient is φ = 461542443835392.

The previous prime is 500004314155007. The next prime is 500004314155037. The reversal of 500004314155021 is 120551413400005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59203329696900 + 440800984458121 = 7694370^2 + 20995261^2 .

It is a cyclic number.

It is not a de Polignac number, because 500004314155021 - 2²¹ = 500004312057869 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 (500004314165021) 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, 19230935159796 + ... + 19230935159821.

It is an arithmetic number, because the mean of its divisors is an integer number (134616546118663).

Almost surely, 2^{500004314155021} is an apocalyptic number.

It is an amenable number.

500004314155021 is a deficient number, since it is larger than the sum of its proper divisors (38461870319631).

500004314155021 is a wasteful number, since it uses less digits than its factorization.

500004314155021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38461870319630.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 500004314155021 its reverse (120551413400005), we get a palindrome (620555727555026).

The spelling of 500004314155021 in words is "five hundred trillion, four billion, three hundred fourteen million, one hundred fifty-five thousand, twenty-one".