2255122144 has 48 divisors (see below), whose sum is σ = 4857375600. Its totient is φ = 1022095360.

The previous prime is 2255122061. The next prime is 2255122159. The reversal of 2255122144 is 4412215522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115182 + ... + 133330.

It is an arithmetic number, because the mean of its divisors is an integer number (101195325).

Almost surely, 2^2255122144 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 2255122144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428687800).

2255122144 is an abundant number, since it is smaller than the sum of its proper divisors (2602253456).

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

2255122144 is a wasteful number, since it uses less digits than its factorization.

2255122144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523 (or 18515 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 2255122144 is about 47488.1263475408. The cubic root of 2255122144 is about 1311.3643001560.

Adding to 2255122144 its reverse (4412215522), we get a palindrome (6667337666).

The spelling of 2255122144 in words is "two billion, two hundred fifty-five million, one hundred twenty-two thousand, one hundred forty-four".