52731 has 24 divisors (see below), whose sum is σ = 93184. Its totient is φ = 29160.
The previous prime is 52727. The next prime is 52733. The reversal of 52731 is 13725.
It is not a de Polignac number, because 52731 - 22 = 52727 is a prime.
It is a super-2 number, since 2×527312 = 5561116722, which contains 22 as substring.
52731 is a lucky number.
It is a plaindrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52733) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1686 + ... + 1716.
52731 is a Friedman number, since it can be written as 217*3^5, using all its digits and the basic arithmetic operations.
252731 is an apocalyptic number.
52731 is a deficient number, since it is larger than the sum of its proper divisors (40453).
52731 is an equidigital number, since it uses as much as digits as its factorization.
52731 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53 (or 41 counting only the distinct ones).
The product of its digits is 210, while the sum is 18.
The square root of 52731 is about 229.6323147991. The cubic root of 52731 is about 37.4991999829.
The spelling of 52731 in words is "fifty-two thousand, seven hundred thirty-one".
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