12544550522250 has 32 divisors (see below), whose sum is σ = 31311198105408. Its totient is φ = 3345213472400.

The previous prime is 12544550522239. The next prime is 12544550522293. The reversal of 12544550522250 is 5222505544521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8363032932 + ... + 8363034431.

It is an arithmetic number, because the mean of its divisors is an integer number (978474940794).

Almost surely, 2^{12544550522250} is an apocalyptic number.

12544550522250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12544550522250 is an abundant number, since it is smaller than the sum of its proper divisors (18766647583158).

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

12544550522250 is a wasteful number, since it uses less digits than its factorization.

12544550522250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16726067383 (or 16726067373 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 42.

The spelling of 12544550522250 in words is "twelve trillion, five hundred forty-four billion, five hundred fifty million, five hundred twenty-two thousand, two hundred fifty".