52031531 has 8 divisors (see below), whose sum is σ = 53215920. Its totient is φ = 50854752.

The previous prime is 52031521. The next prime is 52031549. The reversal of 52031531 is 13513025.

52031531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52031531 - 2¹⁴ = 52015147 is a prime.

It is a super-2 number, since 2×52031531² = 5414560436407922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52031521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13265 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (6651990).

Almost surely, 2^52031531 is an apocalyptic number.

52031531 is a deficient number, since it is larger than the sum of its proper divisors (1184389).

52031531 is a wasteful number, since it uses less digits than its factorization.

52031531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 52031531 is about 7213.2885010930. The cubic root of 52031531 is about 373.3265426238.

Adding to 52031531 its reverse (13513025), we get a palindrome (65544556).

It can be divided in two parts, 52031 and 531, that multiplied together give a triangular number (27628461 = T₇₄₃₃).

The spelling of 52031531 in words is "fifty-two million, thirty-one thousand, five hundred thirty-one".