50439 has 16 divisors (see below), whose sum is σ = 76032. Its totient is φ = 29568.

The previous prime is 50423. The next prime is 50441. The reversal of 50439 is 93405.

It is not a de Polignac number, because 50439 - 2⁴ = 50423 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152 + ... + 1194.

It is an arithmetic number, because the mean of its divisors is an integer number (4752).

2⁵⁰⁴³⁹ is an apocalyptic number.

50439 is a deficient number, since it is larger than the sum of its proper divisors (25593).

50439 is a wasteful number, since it uses less digits than its factorization.

50439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 50439 is about 224.5862863133. The cubic root of 50439 is about 36.9478202873.

The spelling of 50439 in words is "fifty thousand, four hundred thirty-nine".