500000010001 has 2 divisors, whose sum is σ = 500000010002. Its totient is φ = 500000010000.

The previous prime is 500000009963. The next prime is 500000010043. The reversal of 500000010001 is 100010000005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499918288401 + 81721600 = 707049^2 + 9040^2 .

It is a cyclic number.

It is not a de Polignac number, because 500000010001 - 2¹¹ = 500000007953 is a prime.

500000010001 is a modest number, since divided by 10001 gives 5000 as remainder.

It is not a weakly prime, because it can be changed into another prime (500000010071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250000005000 + 250000005001.

It is an arithmetic number, because the mean of its divisors is an integer number (250000005001).

Almost surely, 2^500000010001 is an apocalyptic number.

It is an amenable number.

500000010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

500000010001 is an equidigital number, since it uses as much as digits as its factorization.

500000010001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5, while the sum is 7.

Adding to 500000010001 its reverse (100010000005), we get a palindrome (600010010006).

The spelling of 500000010001 in words is "five hundred billion, ten thousand, one".