2645318225 has 24 divisors (see below), whose sum is σ = 3766738080. Its totient is φ = 1822608000.

The previous prime is 2645318209. The next prime is 2645318227. The reversal of 2645318225 is 5228135462.

It is a happy number.

2645318225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2645318225 - 2⁴ = 2645318209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2645318227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247916 + ... + 258365.

It is an arithmetic number, because the mean of its divisors is an integer number (156947420).

Almost surely, 2^2645318225 is an apocalyptic number.

2645318225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2645318225 is a deficient number, since it is larger than the sum of its proper divisors (1121419855).

2645318225 is a wasteful number, since it uses less digits than its factorization.

2645318225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506321 (or 506316 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 2645318225 is about 51432.6571839332. The cubic root of 2645318225 is about 1383.0120837547.

The spelling of 2645318225 in words is "two billion, six hundred forty-five million, three hundred eighteen thousand, two hundred twenty-five".