2243643225 has 12 divisors (see below), whose sum is σ = 3709490256. Its totient is φ = 1196609680.

The previous prime is 2243643217. The next prime is 2243643317. The reversal of 2243643225 is 5223463422.

It is not a de Polignac number, because 2243643225 - 2³ = 2243643217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14957547 + ... + 14957696.

It is an arithmetic number, because the mean of its divisors is an integer number (309124188).

Almost surely, 2^2243643225 is an apocalyptic number.

2243643225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2243643225 is a deficient number, since it is larger than the sum of its proper divisors (1465847031).

2243643225 is a wasteful number, since it uses less digits than its factorization.

2243643225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29915256 (or 29915251 counting only the distinct ones).

The product of its digits is 69120, while the sum is 33.

The square root of 2243643225 is about 47367.1112165393. Note that the first 3 decimals coincide. The cubic root of 2243643225 is about 1309.1354988078.

The spelling of 2243643225 in words is "two billion, two hundred forty-three million, six hundred forty-three thousand, two hundred twenty-five".