12504225432 has 128 divisors (see below), whose sum is σ = 33264000000. Its totient is φ = 3906009216.

The previous prime is 12504225431. The next prime is 12504225439. The reversal of 12504225432 is 23452240521.

It is a self number, because there is not a number n which added to its sum of digits gives 12504225432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504225431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25058319 + ... + 25058817.

It is an arithmetic number, because the mean of its divisors is an integer number (259875000).

Almost surely, 2^12504225432 is an apocalyptic number.

12504225432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12504225432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16632000000).

12504225432 is an abundant number, since it is smaller than the sum of its proper divisors (20759774568).

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

12504225432 is a wasteful number, since it uses less digits than its factorization.

12504225432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12504225432 its reverse (23452240521), we get a palindrome (35956465953).

The spelling of 12504225432 in words is "twelve billion, five hundred four million, two hundred twenty-five thousand, four hundred thirty-two".