2255565144 has 64 divisors (see below), whose sum is σ = 6601674240. Its totient is φ = 628727040.

The previous prime is 2255565139. The next prime is 2255565163. The reversal of 2255565144 is 4415655522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156844 + ... + 170619.

It is an arithmetic number, because the mean of its divisors is an integer number (103151160).

Almost surely, 2^2255565144 is an apocalyptic number.

2255565144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2255565144 is an abundant number, since it is smaller than the sum of its proper divisors (4346109096).

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

2255565144 is a wasteful number, since it uses less digits than its factorization.

2255565144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327520 (or 327516 counting only the distinct ones).

The product of its digits is 240000, while the sum is 39.

The square root of 2255565144 is about 47492.7904423398. The cubic root of 2255565144 is about 1311.4501634060.

The spelling of 2255565144 in words is "two billion, two hundred fifty-five million, five hundred sixty-five thousand, one hundred forty-four".