50004 has 24 divisors (see below), whose sum is σ = 129920. Its totient is φ = 16632.

The previous prime is 49999. The next prime is 50021. The reversal of 50004 is 40005.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

50004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 124 + ... + 339.

2⁵⁰⁰⁰⁴ is an apocalyptic number.

50004 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

50004 is an abundant number, since it is smaller than the sum of its proper divisors (79916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64960).

50004 is a wasteful number, since it uses less digits than its factorization.

50004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 50004 is about 223.6157418430. The cubic root of 50004 is about 36.8412973686.

Adding to 50004 its reverse (40005), we get a palindrome (90009).

Subtracting from 50004 its reverse (40005), we obtain a palindrome (9999).

The spelling of 50004 in words is "fifty thousand, four", and thus it is an eban number.