52281 has 12 divisors (see below), whose sum is σ = 78052. Its totient is φ = 33696.

The previous prime is 52267. The next prime is 52289. The reversal of 52281 is 18225.

52281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32400 + 19881 = 180^2 + 141^2 .

It is not a de Polignac number, because 52281 - 2⁵ = 52249 is a prime.

It is a super-2 number, since 2×52281² = 5466605922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

52281 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255 + ... + 411.

2⁵²²⁸¹ is an apocalyptic number.

It is an amenable number.

52281 is a deficient number, since it is larger than the sum of its proper divisors (25771).

52281 is a wasteful number, since it uses less digits than its factorization.

52281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 52281 is about 228.6503881475. The cubic root of 52281 is about 37.3922238783.

Adding to 52281 its product of digits (160), we get a square (52441 = 229²).

It can be divided in two parts, 52 and 281, that added together give a palindrome (333).

The spelling of 52281 in words is "fifty-two thousand, two hundred eighty-one".