50000000189 has 2 divisors, whose sum is σ = 50000000190. Its totient is φ = 50000000188.

The previous prime is 50000000131. The next prime is 50000000227. The reversal of 50000000189 is 98100000005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42349524100 + 7650476089 = 205790^2 + 87467^2 .

It is a cyclic number.

It is not a de Polignac number, because 50000000189 - 2¹⁶ = 49999934653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50000000389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000000094 + 25000000095.

It is an arithmetic number, because the mean of its divisors is an integer number (25000000095).

Almost surely, 2^50000000189 is an apocalyptic number.

It is an amenable number.

50000000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

50000000189 is an equidigital number, since it uses as much as digits as its factorization.

50000000189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 50000000189 in words is "fifty billion, one hundred eighty-nine", and thus it is an aban number.