25134605317 has 2 divisors, whose sum is σ = 25134605318. Its totient is φ = 25134605316.

The previous prime is 25134605269. The next prime is 25134605347. The reversal of 25134605317 is 71350643152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19354652641 + 5779952676 = 139121^2 + 76026^2 .

It is a cyclic number.

It is not a de Polignac number, because 25134605317 - 2¹¹ = 25134603269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25134605347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567302658 + 12567302659.

It is an arithmetic number, because the mean of its divisors is an integer number (12567302659).

Almost surely, 2^25134605317 is an apocalyptic number.

It is an amenable number.

25134605317 is a deficient number, since it is larger than the sum of its proper divisors (1).

25134605317 is an equidigital number, since it uses as much as digits as its factorization.

25134605317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 25134605317 in words is "twenty-five billion, one hundred thirty-four million, six hundred five thousand, three hundred seventeen".