25853717 has 2 divisors, whose sum is σ = 25853718. Its totient is φ = 25853716.

The previous prime is 25853687. The next prime is 25853731. The reversal of 25853717 is 71735852.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25745476 + 108241 = 5074^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 25853717 - 2¹⁰ = 25852693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25853747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926858 + 12926859.

It is an arithmetic number, because the mean of its divisors is an integer number (12926859).

Almost surely, 2^25853717 is an apocalyptic number.

It is an amenable number.

25853717 is a deficient number, since it is larger than the sum of its proper divisors (1).

25853717 is an equidigital number, since it uses as much as digits as its factorization.

25853717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 38.

The square root of 25853717 is about 5084.6550522135. The cubic root of 25853717 is about 295.6929682498.

The spelling of 25853717 in words is "twenty-five million, eight hundred fifty-three thousand, seven hundred seventeen".