12551324052 has 48 divisors (see below), whose sum is σ = 29724516864. Its totient is φ = 4121292000.

The previous prime is 12551324047. The next prime is 12551324059. The reversal of 12551324052 is 25042315521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551324059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094227 + ... + 1105637.

It is an arithmetic number, because the mean of its divisors is an integer number (619260768).

Almost surely, 2^12551324052 is an apocalyptic number.

12551324052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12551324052 is an abundant number, since it is smaller than the sum of its proper divisors (17173192812).

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

12551324052 is a wasteful number, since it uses less digits than its factorization.

12551324052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780 (or 12778 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12551324052 its reverse (25042315521), we get a palindrome (37593639573).

The spelling of 12551324052 in words is "twelve billion, five hundred fifty-one million, three hundred twenty-four thousand, fifty-two".