2705550138 has 24 divisors (see below), whose sum is σ = 5961384000. Its totient is φ = 886564104.

The previous prime is 2705550101. The next prime is 2705550139. The reversal of 2705550138 is 8310555072.

2705550138 is a `hidden beast` number, since 2 + 70 + 5 + 550 + 1 + 38 = 666.

It is not an unprimeable number, because it can be changed into a prime (2705550139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272738 + ... + 1274861.

It is an arithmetic number, because the mean of its divisors is an integer number (248391000).

Almost surely, 2^2705550138 is an apocalyptic number.

2705550138 is an abundant number, since it is smaller than the sum of its proper divisors (3255833862).

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

2705550138 is a wasteful number, since it uses less digits than its factorization.

2705550138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547666 (or 2547663 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 2705550138 is about 52014.9030374949. The cubic root of 2705550138 is about 1393.4301251538.

The spelling of 2705550138 in words is "two billion, seven hundred five million, five hundred fifty thousand, one hundred thirty-eight".