25855423841 has 16 divisors (see below), whose sum is σ = 28086349200. Its totient is φ = 23659879680.

The previous prime is 25855423837. The next prime is 25855423859. The reversal of 25855423841 is 14832455852.

It can be written as a sum of positive squares in 8 ways, for example, as 3794560000 + 22060863841 = 61600^2 + 148529^2 .

It is a cyclic number.

It is not a de Polignac number, because 25855423841 - 2² = 25855423837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25855429841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768431 + ... + 801371.

It is an arithmetic number, because the mean of its divisors is an integer number (1755396825).

Almost surely, 2^25855423841 is an apocalyptic number.

It is an amenable number.

25855423841 is a deficient number, since it is larger than the sum of its proper divisors (2230925359).

25855423841 is a wasteful number, since it uses less digits than its factorization.

25855423841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33476.

The product of its digits is 1536000, while the sum is 47.

The spelling of 25855423841 in words is "twenty-five billion, eight hundred fifty-five million, four hundred twenty-three thousand, eight hundred forty-one".