12532510531 has 4 divisors (see below), whose sum is σ = 12533408712. Its totient is φ = 12531612352.

The previous prime is 12532510511. The next prime is 12532510553. The reversal of 12532510531 is 13501523521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13501523521 = 73 ⋅184952377.

It is a cyclic number.

It is not a de Polignac number, because 12532510531 - 2¹⁷ = 12532379459 is a prime.

It is a super-2 number, since 2×12532510531² (a number of 21 digits) 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 12532510531.

It is not an unprimeable number, because it can be changed into a prime (12532510511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427825 + ... + 456178.

It is an arithmetic number, because the mean of its divisors is an integer number (3133352178).

Almost surely, 2^12532510531 is an apocalyptic number.

12532510531 is a deficient number, since it is larger than the sum of its proper divisors (898181).

12532510531 is an equidigital number, since it uses as much as digits as its factorization.

12532510531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898180.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 12532510531 in words is "twelve billion, five hundred thirty-two million, five hundred ten thousand, five hundred thirty-one".