12530503005 has 16 divisors (see below), whose sum is σ = 20427085440. Its totient is φ = 6556841408.

The previous prime is 12530503001. The next prime is 12530503031. The reversal of 12530503005 is 50030503521.

It is a cyclic number.

It is not a de Polignac number, because 12530503005 - 2² = 12530503001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530503001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7880025 + ... + 7881614.

It is an arithmetic number, because the mean of its divisors is an integer number (1276692840).

Almost surely, 2^12530503005 is an apocalyptic number.

12530503005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12530503005 is a deficient number, since it is larger than the sum of its proper divisors (7896582435).

12530503005 is a wasteful number, since it uses less digits than its factorization.

12530503005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15761700.

The product of its (nonzero) digits is 2250, while the sum is 24.

The spelling of 12530503005 in words is "twelve billion, five hundred thirty million, five hundred three thousand, five".