25002805255055 has 4 divisors (see below), whose sum is σ = 30003366306072. Its totient is φ = 20002244204040.

The previous prime is 25002805255039. The next prime is 25002805255063. The reversal of 25002805255055 is 55055250820052.

It is a happy number.

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

It is not a de Polignac number, because 25002805255055 - 2⁴ = 25002805255039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25002805254997 and 25002805255015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500280525501 + ... + 2500280525510.

It is an arithmetic number, because the mean of its divisors is an integer number (7500841576518).

Almost surely, 2^{25002805255055} is an apocalyptic number.

25002805255055 is a deficient number, since it is larger than the sum of its proper divisors (5000561051017).

25002805255055 is an equidigital number, since it uses as much as digits as its factorization.

25002805255055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000561051016.

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 25002805255055 in words is "twenty-five trillion, two billion, eight hundred five million, two hundred fifty-five thousand, fifty-five".