50019149 has 2 divisors, whose sum is σ = 50019150. Its totient is φ = 50019148.

The previous prime is 50019143. The next prime is 50019163. The reversal of 50019149 is 94191005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 2271049 = 6910^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 50019149 - 2⁴ = 50019133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50019143) 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, 25009574 + 25009575.

It is an arithmetic number, because the mean of its divisors is an integer number (25009575).

Almost surely, 2^50019149 is an apocalyptic number.

It is an amenable number.

50019149 is a deficient number, since it is larger than the sum of its proper divisors (1).

50019149 is an equidigital number, since it uses as much as digits as its factorization.

50019149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 50019149 is about 7072.4217210231. The cubic root of 50019149 is about 368.4501742075.

The spelling of 50019149 in words is "fifty million, nineteen thousand, one hundred forty-nine".