320056 has 16 divisors (see below), whose sum is σ = 654840. Its totient is φ = 145440.

The previous prime is 320053. The next prime is 320057. The reversal of 320056 is 650023.

320056 is nontrivially palindromic in base 7.

320056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320053) 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, 1731 + ... + 1906.

2³²⁰⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

320056 is an abundant number, since it is smaller than the sum of its proper divisors (334784).

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

320056 is a wasteful number, since it uses less digits than its factorization.

320056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654 (or 3650 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 320056 is about 565.7349202586. The cubic root of 320056 is about 68.4030275782.

Adding to 320056 its reverse (650023), we get a palindrome (970079).

The spelling of 320056 in words is "three hundred twenty thousand, fifty-six".