12748005503 has 4 divisors (see below), whose sum is σ = 12758692368. Its totient is φ = 12737318640.

The previous prime is 12748005499. The next prime is 12748005541. The reversal of 12748005503 is 30550084721.

It is a happy number.

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 12748005503 - 2² = 12748005499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748005593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5341643 + ... + 5344028.

It is an arithmetic number, because the mean of its divisors is an integer number (3189673092).

Almost surely, 2^12748005503 is an apocalyptic number.

12748005503 is a deficient number, since it is larger than the sum of its proper divisors (10686865).

12748005503 is a wasteful number, since it uses less digits than its factorization.

12748005503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686864.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 12748005503 in words is "twelve billion, seven hundred forty-eight million, five thousand, five hundred three".