2773645556 has 24 divisors (see below), whose sum is σ = 5333803776. Its totient is φ = 1251542720.

The previous prime is 2773645529. The next prime is 2773645561. The reversal of 2773645556 is 6555463772.

2773645556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224036 + ... + 236091.

It is an arithmetic number, because the mean of its divisors is an integer number (222241824).

Almost surely, 2^2773645556 is an apocalyptic number.

It is an amenable number.

2773645556 is a deficient number, since it is larger than the sum of its proper divisors (2560158220).

2773645556 is a wasteful number, since it uses less digits than its factorization.

2773645556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460279 (or 460277 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 50.

The square root of 2773645556 is about 52665.4113816649. The cubic root of 2773645556 is about 1405.0237127409.

The spelling of 2773645556 in words is "two billion, seven hundred seventy-three million, six hundred forty-five thousand, five hundred fifty-six".