26125717 has 2 divisors, whose sum is σ = 26125718. Its totient is φ = 26125716.

The previous prime is 26125709. The next prime is 26125727. The reversal of 26125717 is 71752162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25796241 + 329476 = 5079^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 26125717 - 2³ = 26125709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26125727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13062858 + 13062859.

It is an arithmetic number, because the mean of its divisors is an integer number (13062859).

Almost surely, 2^26125717 is an apocalyptic number.

It is an amenable number.

26125717 is a deficient number, since it is larger than the sum of its proper divisors (1).

26125717 is an equidigital number, since it uses as much as digits as its factorization.

26125717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 31.

The square root of 26125717 is about 5111.3322138167. The cubic root of 26125717 is about 296.7263215193.

Adding to 26125717 its reverse (71752162), we get a palindrome (97877879).

The spelling of 26125717 in words is "twenty-six million, one hundred twenty-five thousand, seven hundred seventeen".