25235617 has 16 divisors (see below), whose sum is σ = 28308672. Its totient is φ = 22302720.

The previous prime is 25235549. The next prime is 25235621. The reversal of 25235617 is 71653252.

It is not a de Polignac number, because 25235617 - 2⁷ = 25235489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25235627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71313 + ... + 71665.

It is an arithmetic number, because the mean of its divisors is an integer number (1769292).

Almost surely, 2^25235617 is an apocalyptic number.

It is an amenable number.

25235617 is a deficient number, since it is larger than the sum of its proper divisors (3073055).

25235617 is a wasteful number, since it uses less digits than its factorization.

25235617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528.

The product of its digits is 12600, while the sum is 31.

The square root of 25235617 is about 5023.5064447057. The cubic root of 25235617 is about 293.3175007237.

Adding to 25235617 its reverse (71653252), we get a palindrome (96888869).

It can be divided in two parts, 25235 and 617, that added together give a palindrome (25852).

The spelling of 25235617 in words is "twenty-five million, two hundred thirty-five thousand, six hundred seventeen".