25963191 has 6 divisors (see below), whose sum is σ = 37502400. Its totient is φ = 17308788.

The previous prime is 25963153. The next prime is 25963193. The reversal of 25963191 is 19136952.

It is not a de Polignac number, because 25963191 - 2¹⁷ = 25832119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25963193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1442391 + ... + 1442408.

It is an arithmetic number, because the mean of its divisors is an integer number (6250400).

Almost surely, 2^25963191 is an apocalyptic number.

25963191 is a deficient number, since it is larger than the sum of its proper divisors (11539209).

25963191 is a wasteful number, since it uses less digits than its factorization.

25963191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884805 (or 2884802 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 25963191 is about 5095.4088157870. The cubic root of 25963191 is about 296.1097375863.

The spelling of 25963191 in words is "twenty-five million, nine hundred sixty-three thousand, one hundred ninety-one".