2255775522 has 128 divisors (see below), whose sum is σ = 6221795328. Its totient is φ = 526176000.

The previous prime is 2255775503. The next prime is 2255775523.

2255775522 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2255775523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 217147 + ... + 227297.

It is an arithmetic number, because the mean of its divisors is an integer number (48607776).

Almost surely, 2^2255775522 is an apocalyptic number.

2255775522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255775522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3110897664).

2255775522 is an abundant number, since it is smaller than the sum of its proper divisors (3966019806).

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

2255775522 is a wasteful number, since it uses less digits than its factorization.

2255775522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224.

The product of its digits is 490000, while the sum is 42.

The square root of 2255775522 is about 47495.0052321294. The cubic root of 2255775522 is about 1311.4909354029.

It can be divided in two parts, 2255 and 775522, that added together give a palindrome (777777).

The spelling of 2255775522 in words is "two billion, two hundred fifty-five million, seven hundred seventy-five thousand, five hundred twenty-two".