12510432550 has 144 divisors (see below), whose sum is σ = 30814670592. Its totient is φ = 3729633600.

The previous prime is 12510432533. The next prime is 12510432551. The reversal of 12510432550 is 5523401521.

12510432550 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 (12510432551) 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 71 ways as a sum of consecutive naturals, for example, 609759 + ... + 629941.

It is an arithmetic number, because the mean of its divisors is an integer number (213990768).

Almost surely, 2^12510432550 is an apocalyptic number.

12510432550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12510432550 is an abundant number, since it is smaller than the sum of its proper divisors (18304238042).

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

12510432550 is a wasteful number, since it uses less digits than its factorization.

12510432550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243 (or 20231 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 12510432550 in words is "twelve billion, five hundred ten million, four hundred thirty-two thousand, five hundred fifty".