278052805255 has 4 divisors (see below), whose sum is σ = 333663366312. Its totient is φ = 222442244200.

The previous prime is 278052805229. The next prime is 278052805267. The reversal of 278052805255 is 552508250872.

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

It is not a de Polignac number, because 278052805255 - 2¹¹ = 278052803207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 278052805199 and 278052805208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27805280521 + ... + 27805280530.

It is an arithmetic number, because the mean of its divisors is an integer number (83415841578).

Almost surely, 2^278052805255 is an apocalyptic number.

278052805255 is a deficient number, since it is larger than the sum of its proper divisors (55610561057).

278052805255 is an equidigital number, since it uses as much as digits as its factorization.

278052805255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55610561056.

The product of its (nonzero) digits is 2240000, while the sum is 49.

The spelling of 278052805255 in words is "two hundred seventy-eight billion, fifty-two million, eight hundred five thousand, two hundred fifty-five".