52431 has 4 divisors (see below), whose sum is σ = 69912. Its totient is φ = 34952.

The previous prime is 52391. The next prime is 52433. The reversal of 52431 is 13425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52431 - 2¹⁰ = 51407 is a prime.

It is a super-2 number, since 2×52431² = 5498019522, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 16.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 52431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52433) 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, 8736 + ... + 8741.

It is an arithmetic number, because the mean of its divisors is an integer number (17478).

2⁵²⁴³¹ is an apocalyptic number.

52431 is a deficient number, since it is larger than the sum of its proper divisors (17481).

52431 is a wasteful number, since it uses less digits than its factorization.

52431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480.

The product of its digits is 120, while the sum is 15.

The square root of 52431 is about 228.9781648979. The cubic root of 52431 is about 37.4279505476.

Adding to 52431 its reverse (13425), we get a palindrome (65856).

It can be divided in two parts, 524 and 31, that added together give a palindrome (555).

The spelling of 52431 in words is "fifty-two thousand, four hundred thirty-one".