1000050001 has 2 divisors, whose sum is σ = 1000050002. Its totient is φ = 1000050000.

The previous prime is 1000049989. The next prime is 1000050017. The reversal of 1000050001 is 1000500001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961000000 + 39050001 = 31000^2 + 6249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000050001 - 2¹¹ = 1000047953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000050061) 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 as a sum of consecutive naturals, namely, 500025000 + 500025001.

It is an arithmetic number, because the mean of its divisors is an integer number (500025001).

Almost surely, 2^1000050001 is an apocalyptic number.

1000050001 is the 20001-st centered pentagonal number.

It is an amenable number.

1000050001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000050001 is an equidigital number, since it uses as much as digits as its factorization.

1000050001 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.

The square root of 1000050001 is about 31623.5671770280. The cubic root of 1000050001 is about 1000.0166667222.

Adding to 1000050001 its reverse (1000500001), we get a palindrome (2000550002).

The spelling of 1000050001 in words is "one billion, fifty thousand, one".