2550684906 has 288 divisors, whose sum is σ = 7509827520. Its totient is φ = 616896000.

The previous prime is 2550684881. The next prime is 2550684923. The reversal of 2550684906 is 6094860552.

2550684906 is a `hidden beast` number, since 2 + 550 + 6 + 8 + 4 + 90 + 6 = 666.

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 143 ways as a sum of consecutive naturals, for example, 18618070 + ... + 18618206.

It is an arithmetic number, because the mean of its divisors is an integer number (26075790).

Almost surely, 2^2550684906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550684906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3754913760).

2550684906 is an abundant number, since it is smaller than the sum of its proper divisors (4959142614).

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

2550684906 is a wasteful number, since it uses less digits than its factorization.

2550684906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2550684906 is about 50504.3058164351. The cubic root of 2550684906 is about 1366.3195130018.

The spelling of 2550684906 in words is "two billion, five hundred fifty million, six hundred eighty-four thousand, nine hundred six".