50389 has 4 divisors (see below), whose sum is σ = 51660. Its totient is φ = 49120.

The previous prime is 50387. The next prime is 50411. The reversal of 50389 is 98305.

50389 = 13² + 14² + ... + 53².

50389 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 an emirpimes, since its reverse is a distinct semiprime: 98305 = 5 ⋅19661.

It can be written as a sum of positive squares in 2 ways, for example, as 27889 + 22500 = 167^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 50389 - 2¹ = 50387 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50383) 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, 574 + ... + 655.

It is an arithmetic number, because the mean of its divisors is an integer number (12915).

2⁵⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

50389 is a deficient number, since it is larger than the sum of its proper divisors (1271).

50389 is a wasteful number, since it uses less digits than its factorization.

50389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 50389 is about 224.4749429224. The cubic root of 50389 is about 36.9356075036.

The spelling of 50389 in words is "fifty thousand, three hundred eighty-nine".