532531531 has 16 divisors (see below), whose sum is σ = 613370880. Its totient is φ = 452900160.

The previous prime is 532531523. The next prime is 532531537. The reversal of 532531531 is 135135235.

It is a cyclic number.

It is not a de Polignac number, because 532531531 - 2³ = 532531523 is a prime.

It is a super-2 number, since 2×532531531² = 567179663018407922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 532531531.

It is not an unprimeable number, because it can be changed into a prime (532531537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657855 + ... + 658663.

It is an arithmetic number, because the mean of its divisors is an integer number (38335680).

Almost surely, 2^532531531 is an apocalyptic number.

532531531 is a deficient number, since it is larger than the sum of its proper divisors (80839349).

532531531 is a wasteful number, since it uses less digits than its factorization.

532531531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its digits is 6750, while the sum is 28.

The square root of 532531531 is about 23076.6447084493. The cubic root of 532531531 is about 810.5536686056.

Adding to 532531531 its reverse (135135235), we get a palindrome (667666766).

It can be divided in two parts, 5325 and 31531, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 532531531 in words is "five hundred thirty-two million, five hundred thirty-one thousand, five hundred thirty-one".