12505941505 has 8 divisors (see below), whose sum is σ = 15090969600. Its totient is φ = 9948860016.

The previous prime is 12505941499. The next prime is 12505941521. The reversal of 12505941505 is 50514950521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12505941505 - 2¹⁷ = 12505810433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6985665 + ... + 6987454.

It is an arithmetic number, because the mean of its divisors is an integer number (1886371200).

Almost surely, 2^12505941505 is an apocalyptic number.

It is an amenable number.

12505941505 is a deficient number, since it is larger than the sum of its proper divisors (2585028095).

12505941505 is a wasteful number, since it uses less digits than its factorization.

12505941505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973303.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 12505941505 in words is "twelve billion, five hundred five million, nine hundred forty-one thousand, five hundred five".