12504251 has 2 divisors, whose sum is σ = 12504252. Its totient is φ = 12504250.

The previous prime is 12504227. The next prime is 12504257. The reversal of 12504251 is 15240521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12504251 - 2¹⁸ = 12242107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12504257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252125 + 6252126.

It is an arithmetic number, because the mean of its divisors is an integer number (6252126).

Almost surely, 2^12504251 is an apocalyptic number.

12504251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12504251 is an equidigital number, since it uses as much as digits as its factorization.

12504251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12504251 is about 3536.1350370143. The cubic root of 12504251 is about 232.1057472244.

Adding to 12504251 its reverse (15240521), we get a palindrome (27744772).

The spelling of 12504251 in words is "twelve million, five hundred four thousand, two hundred fifty-one".