25638583611255 has 8 divisors (see below), whose sum is σ = 41021733778032. Its totient is φ = 13673911259328.

The previous prime is 25638583611241. The next prime is 25638583611257. The reversal of 25638583611255 is 55211638583652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25638583611255 - 2⁴ = 25638583611239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25638583611257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854619453694 + ... + 854619453723.

It is an arithmetic number, because the mean of its divisors is an integer number (5127716722254).

Almost surely, 2^{25638583611255} is an apocalyptic number.

25638583611255 is a deficient number, since it is larger than the sum of its proper divisors (15383150166777).

25638583611255 is a wasteful number, since it uses less digits than its factorization.

25638583611255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709238907425.

The product of its digits is 51840000, while the sum is 60.

The spelling of 25638583611255 in words is "twenty-five trillion, six hundred thirty-eight billion, five hundred eighty-three million, six hundred eleven thousand, two hundred fifty-five".