12505037 has 2 divisors, whose sum is σ = 12505038. Its totient is φ = 12505036.

The previous prime is 12504977. The next prime is 12505039. The reversal of 12505037 is 73050521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12432676 + 72361 = 3526^2 + 269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12505037 is a prime.

Together with 12505039, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12505039) 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 as a sum of consecutive naturals, namely, 6252518 + 6252519.

It is an arithmetic number, because the mean of its divisors is an integer number (6252519).

Almost surely, 2^12505037 is an apocalyptic number.

It is an amenable number.

12505037 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505037 is an equidigital number, since it uses as much as digits as its factorization.

12505037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 12505037 is about 3536.2461735575. The cubic root of 12505037 is about 232.1106104050.

Adding to 12505037 its reverse (73050521), we get a palindrome (85555558).

The spelling of 12505037 in words is "twelve million, five hundred five thousand, thirty-seven".