12525252525257 has 2 divisors, whose sum is σ = 12525252525258. Its totient is φ = 12525252525256.

The previous prime is 12525252525217. The next prime is 12525252525263. The reversal of 12525252525257 is 75252525252521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10300915926016 + 2224336599241 = 3209504^2 + 1491421^2 .

It is a cyclic number.

It is not a de Polignac number, because 12525252525257 - 2⁶ = 12525252525193 is a prime.

It is not a weakly prime, because it can be changed into another prime (12525252525217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6262626262628 + 6262626262629.

It is an arithmetic number, because the mean of its divisors is an integer number (6262626262629).

Almost surely, 2^{12525252525257} is an apocalyptic number.

It is an amenable number.

12525252525257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12525252525257 is an equidigital number, since it uses as much as digits as its factorization.

12525252525257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7000000, while the sum is 50.

Adding to 12525252525257 its reverse (75252525252521), we get a palindrome (87777777777778).

The spelling of 12525252525257 in words is "twelve trillion, five hundred twenty-five billion, two hundred fifty-two million, five hundred twenty-five thousand, two hundred fifty-seven".