2255555135129 has 4 divisors (see below), whose sum is σ = 2257188413220. Its totient is φ = 2253921857040.

The previous prime is 2255555135117. The next prime is 2255555135159. The reversal of 2255555135129 is 9215315555522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1541322250000 + 714232885129 = 1241500^2 + 845123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255555135129 - 2⁸ = 2255555134873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255555135159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816636974 + ... + 816639735.

It is an arithmetic number, because the mean of its divisors is an integer number (564297103305).

Almost surely, 2^{2255555135129} is an apocalyptic number.

It is an amenable number.

2255555135129 is a deficient number, since it is larger than the sum of its proper divisors (1633278091).

2255555135129 is a wasteful number, since it uses less digits than its factorization.

2255555135129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633278090.

The product of its digits is 3375000, while the sum is 50.

The spelling of 2255555135129 in words is "two trillion, two hundred fifty-five billion, five hundred fifty-five million, one hundred thirty-five thousand, one hundred twenty-nine".