52531 has 4 divisors (see below), whose sum is σ = 53064. Its totient is φ = 52000.

The previous prime is 52529. The next prime is 52541. The reversal of 52531 is 13525.

It is a semiprime because it is the product of two primes, 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 52531 - 2¹ = 52529 is a prime.

It is a super-2 number, since 2×52531² = 5519011922, which contains 22 as substring.

It is a Duffinian number.

52531 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (52501) 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, 70 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (13266).

2⁵²⁵³¹ is an apocalyptic number.

52531 is the 103-rd centered decagonal number.

52531 is a deficient number, since it is larger than the sum of its proper divisors (533).

52531 is a wasteful number, since it uses less digits than its factorization.

52531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532.

The product of its digits is 150, while the sum is 16.

The square root of 52531 is about 229.1964223106. The cubic root of 52531 is about 37.4517304874.

The spelling of 52531 in words is "fifty-two thousand, five hundred thirty-one".