2550778055 has 24 divisors (see below), whose sum is σ = 3562895808. Its totient is φ = 1748015808.

The previous prime is 2550778049. The next prime is 2550778091. The reversal of 2550778055 is 5508770552.

It is a de Polignac number, because none of the positive numbers 2^k-2550778055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2550777997 and 2550778015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715337 + ... + 718893.

It is an arithmetic number, because the mean of its divisors is an integer number (148453992).

Almost surely, 2^2550778055 is an apocalyptic number.

2550778055 is a deficient number, since it is larger than the sum of its proper divisors (1012117753).

2550778055 is a wasteful number, since it uses less digits than its factorization.

2550778055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The square root of 2550778055 is about 50505.2279967134. The cubic root of 2550778055 is about 1366.3361451028.

The spelling of 2550778055 in words is "two billion, five hundred fifty million, seven hundred seventy-eight thousand, fifty-five".