25345717 has 2 divisors, whose sum is σ = 25345718. Its totient is φ = 25345716.

The previous prime is 25345709. The next prime is 25345721. The reversal of 25345717 is 71754352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15163236 + 10182481 = 3894^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 25345717 - 2³ = 25345709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25345417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12672858 + 12672859.

It is an arithmetic number, because the mean of its divisors is an integer number (12672859).

Almost surely, 2^25345717 is an apocalyptic number.

It is an amenable number.

25345717 is a deficient number, since it is larger than the sum of its proper divisors (1).

25345717 is an equidigital number, since it uses as much as digits as its factorization.

25345717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 25345717 is about 5034.4529990854. The cubic root of 25345717 is about 293.7434516723.

It can be divided in two parts, 25345 and 717, that added together give a palindrome (26062).

The spelling of 25345717 in words is "twenty-five million, three hundred forty-five thousand, seven hundred seventeen".