56281 has 4 divisors (see below), whose sum is σ = 58752. Its totient is φ = 53812.

The previous prime is 56269. The next prime is 56299. The reversal of 56281 is 18265.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56281 - 2⁵ = 56249 is a prime.

It is a super-2 number, since 2×56281² = 6335101922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 56281 parts by 335 straight cuts.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (56081) 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 3 ways as a sum of consecutive naturals, for example, 1201 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (14688).

2⁵⁶²⁸¹ is an apocalyptic number.

It is an amenable number.

56281 is a deficient number, since it is larger than the sum of its proper divisors (2471).

56281 is a wasteful number, since it uses less digits than its factorization.

56281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470.

The product of its digits is 480, while the sum is 22.

The square root of 56281 is about 237.2361692491. The cubic root of 56281 is about 38.3225090211.

The spelling of 56281 in words is "fifty-six thousand, two hundred eighty-one".