2055617655 has 64 divisors (see below), whose sum is σ = 4063653888. Its totient is φ = 864069120.

The previous prime is 2055617647. The next prime is 2055617699. The reversal of 2055617655 is 5567165502.

It is a happy number.

It is not a de Polignac number, because 2055617655 - 2³ = 2055617647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 367137 + ... + 372693.

It is an arithmetic number, because the mean of its divisors is an integer number (63494592).

Almost surely, 2^2055617655 is an apocalyptic number.

2055617655 is a deficient number, since it is larger than the sum of its proper divisors (2008036233).

2055617655 is a wasteful number, since it uses less digits than its factorization.

2055617655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856.

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 2055617655 is about 45338.9198702395. The cubic root of 2055617655 is about 1271.4934082187.

The spelling of 2055617655 in words is "two billion, fifty-five million, six hundred seventeen thousand, six hundred fifty-five".