25957017 has 24 divisors (see below), whose sum is σ = 39946816. Its totient is φ = 16831152.

The previous prime is 25956989. The next prime is 25957027. The reversal of 25957017 is 71075952.

It is not a de Polignac number, because 25957017 - 2²⁰ = 24908441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25957027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7548 + ... + 10434.

Almost surely, 2^25957017 is an apocalyptic number.

25957017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25957017 is a deficient number, since it is larger than the sum of its proper divisors (13989799).

25957017 is an equidigital number, since it uses as much as digits as its factorization.

25957017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939 (or 2927 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 25957017 is about 5094.8029402520. The cubic root of 25957017 is about 296.0862642717.

The spelling of 25957017 in words is "twenty-five million, nine hundred fifty-seven thousand, seventeen".