25261959 has 4 divisors (see below), whose sum is σ = 33682616. Its totient is φ = 16841304.

The previous prime is 25261927. The next prime is 25261967. The reversal of 25261959 is 95916252.

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

It is not a de Polignac number, because 25261959 - 2⁵ = 25261927 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 (25261919) 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, 4210324 + ... + 4210329.

It is an arithmetic number, because the mean of its divisors is an integer number (8420654).

Almost surely, 2^25261959 is an apocalyptic number.

25261959 is a deficient number, since it is larger than the sum of its proper divisors (8420657).

25261959 is an equidigital number, since it uses as much as digits as its factorization.

25261959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420656.

The product of its digits is 48600, while the sum is 39.

The square root of 25261959 is about 5026.1276346707. The cubic root of 25261959 is about 293.4195242873.

The spelling of 25261959 in words is "twenty-five million, two hundred sixty-one thousand, nine hundred fifty-nine".