52681 has 4 divisors (see below), whose sum is σ = 53200. Its totient is φ = 52164.

The previous prime is 52673. The next prime is 52691. The reversal of 52681 is 18625.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52681 - 2³ = 52673 is a prime.

It is a super-2 number, since 2×52681² = 5550575522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52631) 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, 51 + ... + 328.

It is an arithmetic number, because the mean of its divisors is an integer number (13300).

2⁵²⁶⁸¹ is an apocalyptic number.

It is an amenable number.

52681 is a deficient number, since it is larger than the sum of its proper divisors (519).

52681 is a wasteful number, since it uses less digits than its factorization.

52681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

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

The square root of 52681 is about 229.5234192844. The cubic root of 52681 is about 37.4873438772.

The spelling of 52681 in words is "fifty-two thousand, six hundred eighty-one".