50720 has 24 divisors (see below), whose sum is σ = 120204. Its totient is φ = 20224.

The previous prime is 50707. The next prime is 50723. The reversal of 50720 is 2705.

It can be written as a sum of positive squares in 2 ways, for example, as 44944 + 5776 = 212^2 + 76^2 .

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 50695 and 50704.

It is not an unprimeable number, because it can be changed into a prime (50723) by changing a digit.

50720 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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 318.

2⁵⁰⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60102).

50720 is an abundant number, since it is smaller than the sum of its proper divisors (69484).

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

50720 is a wasteful number, since it uses less digits than its factorization.

50720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 50720 is about 225.2110121641. The cubic root of 50720 is about 37.0163064234.

The spelling of 50720 in words is "fifty thousand, seven hundred twenty".