25996163 has 4 divisors (see below), whose sum is σ = 26698800. Its totient is φ = 25293528.

The previous prime is 25996133. The next prime is 25996169. The reversal of 25996163 is 36169952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25996163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25996163.

It is not an unprimeable number, because it can be changed into a prime (25996169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351263 + ... + 351336.

It is an arithmetic number, because the mean of its divisors is an integer number (6674700).

Almost surely, 2^25996163 is an apocalyptic number.

25996163 is a deficient number, since it is larger than the sum of its proper divisors (702637).

25996163 is an equidigital number, since it uses as much as digits as its factorization.

25996163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702636.

The product of its digits is 87480, while the sum is 41.

The square root of 25996163 is about 5098.6432509051. The cubic root of 25996163 is about 296.2350329220.

The spelling of 25996163 in words is "twenty-five million, nine hundred ninety-six thousand, one hundred sixty-three".