12505039 has 2 divisors, whose sum is σ = 12505040. Its totient is φ = 12505038.

The previous prime is 12505037. The next prime is 12505057. The reversal of 12505039 is 93050521.

It is a weak prime.

It is an emirp because it is prime and its reverse (93050521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12505039 - 2¹ = 12505037 is a prime.

Together with 12505037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12505037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252519 + 6252520.

It is an arithmetic number, because the mean of its divisors is an integer number (6252520).

Almost surely, 2^12505039 is an apocalyptic number.

12505039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505039 is an equidigital number, since it uses as much as digits as its factorization.

12505039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 12505039 is about 3536.2464563432. The cubic root of 12505039 is about 232.1106227793.

The spelling of 12505039 in words is "twelve million, five hundred five thousand, thirty-nine".