12554022500 has 30 divisors (see below), whose sum is σ = 27453141870. Its totient is φ = 5021608000.

The previous prime is 12554022463. The next prime is 12554022527. The reversal of 12554022500 is 522045521.

12554022500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 7923492196 + 4630530304 = 89014^2 + 68048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12554022500.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2508305 + ... + 2513304.

It is an arithmetic number, because the mean of its divisors is an integer number (915104729).

Almost surely, 2^12554022500 is an apocalyptic number.

12554022500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554022500 is an abundant number, since it is smaller than the sum of its proper divisors (14899119370).

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

12554022500 is an equidigital number, since it uses as much as digits as its factorization.

12554022500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021633 (or 5021616 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 12554022500 in words is "twelve billion, five hundred fifty-four million, twenty-two thousand, five hundred".