12508501 has 2 divisors, whose sum is σ = 12508502. Its totient is φ = 12508500.

The previous prime is 12508493. The next prime is 12508519. The reversal of 12508501 is 10580521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 4835601 = 2770^2 + 2199^2 .

It is a cyclic number.

It is not a de Polignac number, because 12508501 - 2³ = 12508493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12508201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6254250 + 6254251.

It is an arithmetic number, because the mean of its divisors is an integer number (6254251).

Almost surely, 2^12508501 is an apocalyptic number.

It is an amenable number.

12508501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12508501 is an equidigital number, since it uses as much as digits as its factorization.

12508501 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 22.

The square root of 12508501 is about 3536.7359245496. The cubic root of 12508501 is about 232.1320406208.

The spelling of 12508501 in words is "twelve million, five hundred eight thousand, five hundred one".