25500117 has 8 divisors (see below), whose sum is σ = 34089120. Its totient is φ = 16955600.

The previous prime is 25500113. The next prime is 25500127. The reversal of 25500117 is 71100552.

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 25500117 - 2² = 25500113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25500093 and 25500102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500113) 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, 9759 + ... + 12092.

It is an arithmetic number, because the mean of its divisors is an integer number (4261140).

Almost surely, 2^25500117 is an apocalyptic number.

It is an amenable number.

25500117 is a deficient number, since it is larger than the sum of its proper divisors (8589003).

25500117 is a wasteful number, since it uses less digits than its factorization.

25500117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22243.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 25500117 is about 5049.7640538940. The cubic root of 25500117 is about 294.3387160079.

Adding to 25500117 its reverse (71100552), we get a palindrome (96600669).

The spelling of 25500117 in words is "twenty-five million, five hundred thousand, one hundred seventeen".