25961959 has 4 divisors (see below), whose sum is σ = 26075560. Its totient is φ = 25848360.

The previous prime is 25961933. The next prime is 25961977. The reversal of 25961959 is 95916952.

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

It is a cyclic number.

It is not a de Polignac number, because 25961959 - 2¹¹ = 25959911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25961359) 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 3 ways as a sum of consecutive naturals, for example, 56457 + ... + 56914.

It is an arithmetic number, because the mean of its divisors is an integer number (6518890).

Almost surely, 2^25961959 is an apocalyptic number.

25961959 is a deficient number, since it is larger than the sum of its proper divisors (113601).

25961959 is a wasteful number, since it uses less digits than its factorization.

25961959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113600.

The product of its digits is 218700, while the sum is 46.

The square root of 25961959 is about 5095.2879212072. The cubic root of 25961959 is about 296.1050538661.

The spelling of 25961959 in words is "twenty-five million, nine hundred sixty-one thousand, nine hundred fifty-nine".