25860117 has 16 divisors (see below), whose sum is σ = 35223552. Its totient is φ = 16872240.

The previous prime is 25860091. The next prime is 25860127. The reversal of 25860117 is 71106852.

It is not a de Polignac number, because 25860117 - 2⁸ = 25859861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25860127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35208 + ... + 35934.

It is an arithmetic number, because the mean of its divisors is an integer number (2201472).

Almost surely, 2^25860117 is an apocalyptic number.

It is an amenable number.

25860117 is a deficient number, since it is larger than the sum of its proper divisors (9363435).

25860117 is a wasteful number, since it uses less digits than its factorization.

25860117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 25860117 is about 5085.2843578309. The cubic root of 25860117 is about 295.7173655007.

Adding to 25860117 its reverse (71106852), we get a palindrome (96966969).

The spelling of 25860117 in words is "twenty-five million, eight hundred sixty thousand, one hundred seventeen".