25255876403999 has 4 divisors (see below), whose sum is σ = 25294553091336. Its totient is φ = 25217199716664.

The previous prime is 25255876403987. The next prime is 25255876404029. The reversal of 25255876403999 is 99930467855252.

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 25255876403999 - 2²⁰ = 25255875355423 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 (25255876403959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19338342689 + ... + 19338343994.

It is an arithmetic number, because the mean of its divisors is an integer number (6323638272834).

Almost surely, 2^{25255876403999} is an apocalyptic number.

25255876403999 is a deficient number, since it is larger than the sum of its proper divisors (38676687337).

25255876403999 is an equidigital number, since it uses as much as digits as its factorization.

25255876403999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38676687336.

The product of its (nonzero) digits is 1469664000, while the sum is 74.

The spelling of 25255876403999 in words is "twenty-five trillion, two hundred fifty-five billion, eight hundred seventy-six million, four hundred three thousand, nine hundred ninety-nine".