25278030280255 has 4 divisors (see below), whose sum is σ = 30333636336312. Its totient is φ = 20222424224200.

The previous prime is 25278030280253. The next prime is 25278030280267. The reversal of 25278030280255 is 55208203087252.

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

It is not a de Polignac number, because 25278030280255 - 2¹ = 25278030280253 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25278030280199 and 25278030280208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25278030280253) 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, 2527803028021 + ... + 2527803028030.

It is an arithmetic number, because the mean of its divisors is an integer number (7583409084078).

Almost surely, 2^{25278030280255} is an apocalyptic number.

25278030280255 is a deficient number, since it is larger than the sum of its proper divisors (5055606056057).

25278030280255 is an equidigital number, since it uses as much as digits as its factorization.

25278030280255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055606056056.

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 25278030280255 in words is "twenty-five trillion, two hundred seventy-eight billion, thirty million, two hundred eighty thousand, two hundred fifty-five".