56231 has 8 divisors (see below), whose sum is σ = 66720. Its totient is φ = 46368.

The previous prime is 56209. The next prime is 56237. The reversal of 56231 is 13265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56231 - 2⁶ = 56167 is a prime.

It is a super-3 number, since 3×56231³ = 533394674923173, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (8340).

2⁵⁶²³¹ is an apocalyptic number.

56231 is a deficient number, since it is larger than the sum of its proper divisors (10489).

56231 is a wasteful number, since it uses less digits than its factorization.

56231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its digits is 180, while the sum is 17.

The square root of 56231 is about 237.1307656126. The cubic root of 56231 is about 38.3111570956.

Adding to 56231 its reverse (13265), we get a palindrome (69496).

The spelling of 56231 in words is "fifty-six thousand, two hundred thirty-one".