50825 has 12 divisors (see below), whose sum is σ = 66960. Its totient is φ = 38160.

The previous prime is 50821. The next prime is 50833. The reversal of 50825 is 52805.

It is not a de Polignac number, because 50825 - 2² = 50821 is a prime.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 50797 and 50806.

It is not an unprimeable number, because it can be changed into a prime (50821) 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 11 ways as a sum of consecutive naturals, for example, 422 + ... + 528.

It is an arithmetic number, because the mean of its divisors is an integer number (5580).

2⁵⁰⁸²⁵ is an apocalyptic number.

It is an amenable number.

50825 is a deficient number, since it is larger than the sum of its proper divisors (16135).

50825 is a wasteful number, since it uses less digits than its factorization.

50825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 50825 is about 225.4440063519. Note that the first 3 decimals coincide. The cubic root of 50825 is about 37.0418324038.

Subtracting from 50825 its sum of digits (20), we obtain a palindrome (50805).

The spelling of 50825 in words is "fifty thousand, eight hundred twenty-five".