2255223145 has 32 divisors (see below), whose sum is σ = 3447187200. Its totient is φ = 1378861056.

The previous prime is 2255223133. The next prime is 2255223169. The reversal of 2255223145 is 5413225522.

It is a cyclic number.

It is not a de Polignac number, because 2255223145 - 2⁷ = 2255223017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88440 + ... + 111049.

It is an arithmetic number, because the mean of its divisors is an integer number (107724600).

Almost surely, 2^2255223145 is an apocalyptic number.

It is an amenable number.

2255223145 is a deficient number, since it is larger than the sum of its proper divisors (1191964055).

2255223145 is a wasteful number, since it uses less digits than its factorization.

2255223145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199537.

The product of its digits is 24000, while the sum is 31.

The square root of 2255223145 is about 47489.1897698834. The cubic root of 2255223145 is about 1311.3838773850.

Adding to 2255223145 its reverse (5413225522), we get a palindrome (7668448667).

The spelling of 2255223145 in words is "two billion, two hundred fifty-five million, two hundred twenty-three thousand, one hundred forty-five".