12525344543 has 4 divisors (see below), whose sum is σ = 12525574488. Its totient is φ = 12525114600.

The previous prime is 12525344539. The next prime is 12525344549. The reversal of 12525344543 is 34544352521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12525344543 - 2² = 12525344539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12525344497 and 12525344506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525344549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17993 + ... + 159293.

It is an arithmetic number, because the mean of its divisors is an integer number (3131393622).

Almost surely, 2^12525344543 is an apocalyptic number.

12525344543 is a deficient number, since it is larger than the sum of its proper divisors (229945).

12525344543 is an equidigital number, since it uses as much as digits as its factorization.

12525344543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229944.

The product of its digits is 288000, while the sum is 38.

The spelling of 12525344543 in words is "twelve billion, five hundred twenty-five million, three hundred forty-four thousand, five hundred forty-three".