12505207 has 16 divisors (see below), whose sum is σ = 14811552. Its totient is φ = 10408320.

The previous prime is 12505189. The next prime is 12505219. The reversal of 12505207 is 70250521.

It is not a de Polignac number, because 12505207 - 2⁷ = 12505079 is a prime.

It is a super-2 number, since 2×12505207² = 312760404225698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505237) 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, 22173 + ... + 22729.

It is an arithmetic number, because the mean of its divisors is an integer number (925722).

Almost surely, 2^12505207 is an apocalyptic number.

12505207 is a deficient number, since it is larger than the sum of its proper divisors (2306345).

12505207 is a wasteful number, since it uses less digits than its factorization.

12505207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 12505207 is about 3536.2702102639. The cubic root of 12505207 is about 232.1116622112. Note that the first 3 decimals are identical.

Adding to 12505207 its reverse (70250521), we get a palindrome (82755728).

The spelling of 12505207 in words is "twelve million, five hundred five thousand, two hundred seven".