25916163 has 32 divisors (see below), whose sum is σ = 43276800. Its totient is φ = 13430016.

The previous prime is 25916161. The next prime is 25916173. The reversal of 25916163 is 36161952.

It is a happy number.

It is not a de Polignac number, because 25916163 - 2¹ = 25916161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25916161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15303 + ... + 16911.

It is an arithmetic number, because the mean of its divisors is an integer number (1352400).

Almost surely, 2^25916163 is an apocalyptic number.

25916163 is a deficient number, since it is larger than the sum of its proper divisors (17360637).

25916163 is a wasteful number, since it uses less digits than its factorization.

25916163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its digits is 9720, while the sum is 33.

The square root of 25916163 is about 5090.7919816076. The cubic root of 25916163 is about 295.9308450266.

The spelling of 25916163 in words is "twenty-five million, nine hundred sixteen thousand, one hundred sixty-three".