12523225550 has 24 divisors (see below), whose sum is σ = 25410764232. Its totient is φ = 4553900000.

The previous prime is 12523225543. The next prime is 12523225553. The reversal of 12523225550 is 5552232521.

12523225550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523225553) 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 11 ways as a sum of consecutive naturals, for example, 11384201 + ... + 11385300.

It is an arithmetic number, because the mean of its divisors is an integer number (1058781843).

Almost surely, 2^12523225550 is an apocalyptic number.

12523225550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12523225550 is an abundant number, since it is smaller than the sum of its proper divisors (12887538682).

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

12523225550 is a wasteful number, since it uses less digits than its factorization.

12523225550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22769524 (or 22769519 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 12523225550 in words is "twelve billion, five hundred twenty-three million, two hundred twenty-five thousand, five hundred fifty".