50985169 has 2 divisors, whose sum is σ = 50985170. Its totient is φ = 50985168.

The previous prime is 50985133. The next prime is 50985197. The reversal of 50985169 is 96158905.

It is a happy number.

50985169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50936769 + 48400 = 7137^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 50985169 - 2¹⁵ = 50952401 is a prime.

It is a super-2 number, since 2×50985169² = 5198974915917122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50985199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25492584 + 25492585.

It is an arithmetic number, because the mean of its divisors is an integer number (25492585).

Almost surely, 2^50985169 is an apocalyptic number.

It is an amenable number.

50985169 is a deficient number, since it is larger than the sum of its proper divisors (1).

50985169 is an equidigital number, since it uses as much as digits as its factorization.

50985169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 50985169 is about 7140.3899753445. The cubic root of 50985169 is about 370.8070259108.

The spelling of 50985169 in words is "fifty million, nine hundred eighty-five thousand, one hundred sixty-nine".