12505003 has 16 divisors (see below), whose sum is σ = 14904000. Its totient is φ = 10265472.

The previous prime is 12504977. The next prime is 12505037. The reversal of 12505003 is 30050521.

It is not a de Polignac number, because 12505003 - 2²¹ = 10407851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12505063) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46353 + ... + 46621.

It is an arithmetic number, because the mean of its divisors is an integer number (931500).

Almost surely, 2^12505003 is an apocalyptic number.

12505003 is a deficient number, since it is larger than the sum of its proper divisors (2398997).

12505003 is a wasteful number, since it uses less digits than its factorization.

12505003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 12505003 is about 3536.2413661966. The cubic root of 12505003 is about 232.1104000427.

Adding to 12505003 its reverse (30050521), we get a palindrome (42555524).

The spelling of 12505003 in words is "twelve million, five hundred five thousand, three".