2122555655 has 16 divisors (see below), whose sum is σ = 2942067744. Its totient is φ = 1452871680.

The previous prime is 2122555639. The next prime is 2122555657. The reversal of 2122555655 is 5565552212.

It is not a de Polignac number, because 2122555655 - 2⁴ = 2122555639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122555657) 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, 1134122 + ... + 1135991.

It is an arithmetic number, because the mean of its divisors is an integer number (183879234).

Almost surely, 2^2122555655 is an apocalyptic number.

2122555655 is a deficient number, since it is larger than the sum of its proper divisors (819512089).

2122555655 is a wasteful number, since it uses less digits than its factorization.

2122555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270146.

The product of its digits is 150000, while the sum is 38.

The square root of 2122555655 is about 46071.2020138394. The cubic root of 2122555655 is about 1285.1476572338.

The spelling of 2122555655 in words is "two billion, one hundred twenty-two million, five hundred fifty-five thousand, six hundred fifty-five".