12555323052 has 24 divisors (see below), whose sum is σ = 29401522416. Its totient is φ = 4169997888.

The previous prime is 12555323047. The next prime is 12555323059. The reversal of 12555323052 is 25032355521.

12555323052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12555323052² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12555323059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885263 + ... + 1891910.

It is an arithmetic number, because the mean of its divisors is an integer number (1225063434).

Almost surely, 2^12555323052 is an apocalyptic number.

12555323052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12555323052 is an abundant number, since it is smaller than the sum of its proper divisors (16846199364).

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

12555323052 is a wasteful number, since it uses less digits than its factorization.

12555323052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777457 (or 3777455 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 12555323052 its reverse (25032355521), we get a palindrome (37587678573).

The spelling of 12555323052 in words is "twelve billion, five hundred fifty-five million, three hundred twenty-three thousand, fifty-two".