12532115507 has 4 divisors (see below), whose sum is σ = 12532842840. Its totient is φ = 12531388176.

The previous prime is 12532115503. The next prime is 12532115527. The reversal of 12532115507 is 70551123521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70551123521 = 154789 ⋅455789.

It is a cyclic number.

It is not a de Polignac number, because 12532115507 - 2² = 12532115503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12532115503) 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 3 ways as a sum of consecutive naturals, for example, 337178 + ... + 372495.

It is an arithmetic number, because the mean of its divisors is an integer number (3133210710).

Almost surely, 2^12532115507 is an apocalyptic number.

12532115507 is a deficient number, since it is larger than the sum of its proper divisors (727333).

12532115507 is an equidigital number, since it uses as much as digits as its factorization.

12532115507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727332.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 12532115507 in words is "twelve billion, five hundred thirty-two million, one hundred fifteen thousand, five hundred seven".