2555255555278 has 16 divisors (see below), whose sum is σ = 3915542514240. Its totient is φ = 1250090112736.

The previous prime is 2555255555243. The next prime is 2555255555311. The reversal of 2555255555278 is 8725555525552.

It is a super-2 number, since 2×2555255555278² (a number of 26 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3514993 + ... + 4179196.

It is an arithmetic number, because the mean of its divisors is an integer number (244721407140).

Almost surely, 2^{2555255555278} is an apocalyptic number.

2555255555278 is a deficient number, since it is larger than the sum of its proper divisors (1360286958962).

2555255555278 is a wasteful number, since it uses less digits than its factorization.

2555255555278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7697771.

The product of its digits is 175000000, while the sum is 61.

The spelling of 2555255555278 in words is "two trillion, five hundred fifty-five billion, two hundred fifty-five million, five hundred fifty-five thousand, two hundred seventy-eight".