12525344542 has 4 divisors (see below), whose sum is σ = 18788016816. Its totient is φ = 6262672270.

The previous prime is 12525344539. The next prime is 12525344549. The reversal of 12525344542 is 24544352521.

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

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 polite number, since it can be written as a sum of consecutive naturals, namely, 3131336134 + ... + 3131336137.

It is an arithmetic number, because the mean of its divisors is an integer number (4697004204).

Almost surely, 2^12525344542 is an apocalyptic number.

12525344542 is a deficient number, since it is larger than the sum of its proper divisors (6262672274).

12525344542 is an equidigital number, since it uses as much as digits as its factorization.

12525344542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262672273.

The product of its digits is 192000, while the sum is 37.

The spelling of 12525344542 in words is "twelve billion, five hundred twenty-five million, three hundred forty-four thousand, five hundred forty-two".