50517689 has 4 divisors (see below), whose sum is σ = 51008256. Its totient is φ = 50027124.

The previous prime is 50517673. The next prime is 50517703. The reversal of 50517689 is 98671505.

50517689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98671505 = 5 ⋅19734301.

It is a cyclic number.

It is not a de Polignac number, because 50517689 - 2⁴ = 50517673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50517619) 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 in 3 ways as a sum of consecutive naturals, for example, 245129 + ... + 245334.

It is an arithmetic number, because the mean of its divisors is an integer number (12752064).

Almost surely, 2^50517689 is an apocalyptic number.

It is an amenable number.

50517689 is a deficient number, since it is larger than the sum of its proper divisors (490567).

50517689 is a wasteful number, since it uses less digits than its factorization.

50517689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490566.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 50517689 is about 7107.5796865037. The cubic root of 50517689 is about 369.6702418651.

The spelling of 50517689 in words is "fifty million, five hundred seventeen thousand, six hundred eighty-nine".