50913189 has 6 divisors (see below), whose sum is σ = 73541286. Its totient is φ = 33942120.

The previous prime is 50913169. The next prime is 50913197. The reversal of 50913189 is 98131905.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36397089 + 14516100 = 6033^2 + 3810^2 .

It is not a de Polignac number, because 50913189 - 2⁸ = 50912933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50913139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2828502 + ... + 2828519.

It is an arithmetic number, because the mean of its divisors is an integer number (12256881).

Almost surely, 2^50913189 is an apocalyptic number.

It is an amenable number.

50913189 is a deficient number, since it is larger than the sum of its proper divisors (22628097).

50913189 is a wasteful number, since it uses less digits than its factorization.

50913189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657027 (or 5657024 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 50913189 is about 7135.3478541694. The cubic root of 50913189 is about 370.6324440301.

The spelling of 50913189 in words is "fifty million, nine hundred thirteen thousand, one hundred eighty-nine".