50500001 has 2 divisors, whose sum is σ = 50500002. Its totient is φ = 50500000.

The previous prime is 50499989. The next prime is 50500003. The reversal of 50500001 is 10000505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 16394401 = 5840^2 + 4049^2 .

It is a cyclic number.

It is not a de Polignac number, because 50500001 - 2¹⁸ = 50237857 is a prime.

Together with 50500003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50500003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25250000 + 25250001.

It is an arithmetic number, because the mean of its divisors is an integer number (25250001).

Almost surely, 2^50500001 is an apocalyptic number.

It is an amenable number.

50500001 is a deficient number, since it is larger than the sum of its proper divisors (1).

50500001 is an equidigital number, since it uses as much as digits as its factorization.

50500001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 50500001 is about 7106.3352721357. The cubic root of 50500001 is about 369.6270920255.

Adding to 50500001 its reverse (10000505), we get a palindrome (60500506).

The spelling of 50500001 in words is "fifty million, five hundred thousand, one".