12521440502 has 8 divisors (see below), whose sum is σ = 18813835656. Its totient is φ = 6250161952.

The previous prime is 12521440499. The next prime is 12521440517. The reversal of 12521440502 is 20504412521.

12521440502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5277668 + ... + 5280039.

It is an arithmetic number, because the mean of its divisors is an integer number (2351729457).

Almost surely, 2^12521440502 is an apocalyptic number.

12521440502 is a deficient number, since it is larger than the sum of its proper divisors (6292395154).

12521440502 is a wasteful number, since it uses less digits than its factorization.

12521440502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558302.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 12521440502 in words is "twelve billion, five hundred twenty-one million, four hundred forty thousand, five hundred two".