2775603856 has 15 divisors (see below), whose sum is σ = 5378140803. Its totient is φ = 1387696560.

The previous prime is 2775603829. The next prime is 2775603899. The reversal of 2775603856 is 6583065772.

The square root of 2775603856 is 52684.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 204151 + ... + 217321.

Almost surely, 2^2775603856 is an apocalyptic number.

2775603856 is the 52684-th square number.

It is an amenable number.

2775603856 is a deficient number, since it is larger than the sum of its proper divisors (2602536947).

2775603856 is an frugal number, since it uses more digits than its factorization.

2775603856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26350 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The cubic root of 2775603856 is about 1405.3543018026.

Multiplying 2775603856 by its sum of digits (49), we get a square (136004588944 = 368788²).

The spelling of 2775603856 in words is "two billion, seven hundred seventy-five million, six hundred three thousand, eight hundred fifty-six".