2555694655 has 16 divisors (see below), whose sum is σ = 3230167680. Its totient is φ = 1935794592.

The previous prime is 2555694623. The next prime is 2555694689. The reversal of 2555694655 is 5564965552.

It is a cyclic number.

It is not a de Polignac number, because 2555694655 - 2⁵ = 2555694623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174112 + ... + 188218.

It is an arithmetic number, because the mean of its divisors is an integer number (201885480).

Almost surely, 2^2555694655 is an apocalyptic number.

2555694655 is a deficient number, since it is larger than the sum of its proper divisors (674473025).

2555694655 is a wasteful number, since it uses less digits than its factorization.

2555694655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16038.

The product of its digits is 8100000, while the sum is 52.

The square root of 2555694655 is about 50553.8787334859. The cubic root of 2555694655 is about 1367.2134482424.

The spelling of 2555694655 in words is "two billion, five hundred fifty-five million, six hundred ninety-four thousand, six hundred fifty-five".