50203189 has 4 divisors (see below), whose sum is σ = 50338156. Its totient is φ = 50068224.

The previous prime is 50203171. The next prime is 50203199. The reversal of 50203189 is 98130205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18190225 + 32012964 = 4265^2 + 5658^2 .

It is a cyclic number.

It is not a de Polignac number, because 50203189 - 2¹⁷ = 50072117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50203169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66924 + ... + 67669.

It is an arithmetic number, because the mean of its divisors is an integer number (12584539).

Almost surely, 2^50203189 is an apocalyptic number.

It is an amenable number.

50203189 is a deficient number, since it is larger than the sum of its proper divisors (134967).

50203189 is a wasteful number, since it uses less digits than its factorization.

50203189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134966.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 50203189 is about 7085.4208767017. The cubic root of 50203189 is about 368.9015118454.

The spelling of 50203189 in words is "fifty million, two hundred three thousand, one hundred eighty-nine".