12525131332 has 96 divisors (see below), whose sum is σ = 26327347200. Its totient is φ = 5102334720.

The previous prime is 12525131329. The next prime is 12525131347. The reversal of 12525131332 is 23313152521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12525131332.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11939544 + ... + 11940592.

It is an arithmetic number, because the mean of its divisors is an integer number (274243200).

Almost surely, 2^12525131332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12525131332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13163673600).

12525131332 is an abundant number, since it is smaller than the sum of its proper divisors (13802215868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12525131332 is a wasteful number, since it uses less digits than its factorization.

12525131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

Adding to 12525131332 its reverse (23313152521), we get a palindrome (35838283853).

The spelling of 12525131332 in words is "twelve billion, five hundred twenty-five million, one hundred thirty-one thousand, three hundred thirty-two".