25525317 has 8 divisors (see below), whose sum is σ = 34070400. Its totient is φ = 16998560.

The previous prime is 25525243. The next prime is 25525319. The reversal of 25525317 is 71352552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25525317 - 2¹⁹ = 25001029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909 + ... + 7202.

It is an arithmetic number, because the mean of its divisors is an integer number (4258800).

Almost surely, 2^25525317 is an apocalyptic number.

It is an amenable number.

25525317 is a deficient number, since it is larger than the sum of its proper divisors (8545083).

25525317 is a wasteful number, since it uses less digits than its factorization.

25525317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163.

The product of its digits is 10500, while the sum is 30.

The square root of 25525317 is about 5052.2586038325. The cubic root of 25525317 is about 294.4356422774.

Adding to 25525317 its reverse (71352552), we get a palindrome (96877869).

The spelling of 25525317 in words is "twenty-five million, five hundred twenty-five thousand, three hundred seventeen".