2255310561056 has 144 divisors (see below), whose sum is σ = 5306405675256. Its totient is φ = 940128989184.

The previous prime is 2255310561041. The next prime is 2255310561061. The reversal of 2255310561056 is 6501650135522.

It can be written as a sum of positive squares in 4 ways, for example, as 1813643984656 + 441666576400 = 1346716^2 + 664580^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288509660 + ... + 288517476.

Almost surely, 2^{2255310561056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255310561056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2653202837628).

2255310561056 is an abundant number, since it is smaller than the sum of its proper divisors (3051095114200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2255310561056 is a wasteful number, since it uses less digits than its factorization.

2255310561056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12851 (or 12836 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

Adding to 2255310561056 its reverse (6501650135522), we get a palindrome (8756960696578).

The spelling of 2255310561056 in words is "two trillion, two hundred fifty-five billion, three hundred ten million, five hundred sixty-one thousand, fifty-six".