12553422534 has 48 divisors (see below), whose sum is σ = 28165438080. Its totient is φ = 4036659840.

The previous prime is 12553422533. The next prime is 12553422551. The reversal of 12553422534 is 43522435521.

12553422534 is a `hidden beast` number, since 12 + 55 + 342 + 253 + 4 = 666.

12553422534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553422533) 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 23 ways as a sum of consecutive naturals, for example, 141402 + ... + 212370.

It is an arithmetic number, because the mean of its divisors is an integer number (586779960).

Almost surely, 2^12553422534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12553422534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14082719040).

12553422534 is an abundant number, since it is smaller than the sum of its proper divisors (15612015546).

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

12553422534 is a wasteful number, since it uses less digits than its factorization.

12553422534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71325 (or 71322 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 12553422534 in words is "twelve billion, five hundred fifty-three million, four hundred twenty-two thousand, five hundred thirty-four".