25518113 has 8 divisors (see below), whose sum is σ = 26267136. Its totient is φ = 24775200.

The previous prime is 25518107. The next prime is 25518127. The reversal of 25518113 is 31181552.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25518113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25518413) 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, 7748 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (3283392).

Almost surely, 2^25518113 is an apocalyptic number.

It is an amenable number.

25518113 is a deficient number, since it is larger than the sum of its proper divisors (749023).

25518113 is a wasteful number, since it uses less digits than its factorization.

25518113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 1200, while the sum is 26.

The square root of 25518113 is about 5051.5456050599. The cubic root of 25518113 is about 294.4079401866.

Adding to 25518113 its reverse (31181552), we get a palindrome (56699665).

The spelling of 25518113 in words is "twenty-five million, five hundred eighteen thousand, one hundred thirteen".