2774545655 has 16 divisors (see below), whose sum is σ = 3867472704. Its totient is φ = 1871354880.

The previous prime is 2774545651. The next prime is 2774545687. The reversal of 2774545655 is 5565454772.

2774545655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2774545655 - 2² = 2774545651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774545651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647642 + ... + 651911.

It is an arithmetic number, because the mean of its divisors is an integer number (241717044).

Almost surely, 2^2774545655 is an apocalyptic number.

2774545655 is a deficient number, since it is larger than the sum of its proper divisors (1092927049).

2774545655 is a wasteful number, since it uses less digits than its factorization.

2774545655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299626.

The product of its digits is 5880000, while the sum is 50.

The square root of 2774545655 is about 52673.9561358362. The cubic root of 2774545655 is about 1405.1756816492.

The spelling of 2774545655 in words is "two billion, seven hundred seventy-four million, five hundred forty-five thousand, six hundred fifty-five".