2550778608 has 40 divisors (see below), whose sum is σ = 7530871168. Its totient is φ = 728793792.

The previous prime is 2550778603. The next prime is 2550778621. The reversal of 2550778608 is 8068770552.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550778603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3795466 + ... + 3796137.

Almost surely, 2^2550778608 is an apocalyptic number.

2550778608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2550778608 is an abundant number, since it is smaller than the sum of its proper divisors (4980092560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2550778608 is a wasteful number, since it uses less digits than its factorization.

2550778608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591621 (or 7591615 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The square root of 2550778608 is about 50505.2334713938. The cubic root of 2550778608 is about 1366.3362438418.

The spelling of 2550778608 in words is "two billion, five hundred fifty million, seven hundred seventy-eight thousand, six hundred eight".