56023 has 6 divisors (see below), whose sum is σ = 61712. Its totient is φ = 50820.

The previous prime is 56009. The next prime is 56039. The reversal of 56023 is 32065.

It is not a de Polignac number, because 56023 - 2⁹ = 55511 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 55988 and 56006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56003) 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 5 ways as a sum of consecutive naturals, for example, 111 + ... + 352.

2⁵⁶⁰²³ is an apocalyptic number.

56023 is a deficient number, since it is larger than the sum of its proper divisors (5689).

56023 is a wasteful number, since it uses less digits than its factorization.

56023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 474 counting only the distinct ones).

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

The square root of 56023 is about 236.6917827049. The cubic root of 56023 is about 38.2638607263.

Adding to 56023 its reverse (32065), we get a palindrome (88088).

It can be divided in two parts, 560 and 23, that multiplied together give a triangular number (12880 = T₁₆₀).

The spelling of 56023 in words is "fifty-six thousand, twenty-three".