2605322225 has 12 divisors (see below), whose sum is σ = 3524290800. Its totient is φ = 1894779600.

The previous prime is 2605322197. The next prime is 2605322231. The reversal of 2605322225 is 5222235062.

It is a de Polignac number, because none of the positive numbers 2^k-2605322225 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, 4736675 + ... + 4737224.

It is an arithmetic number, because the mean of its divisors is an integer number (293690900).

Almost surely, 2^2605322225 is an apocalyptic number.

2605322225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2605322225 is a deficient number, since it is larger than the sum of its proper divisors (918968575).

2605322225 is a wasteful number, since it uses less digits than its factorization.

2605322225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473920 (or 9473915 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2605322225 is about 51042.3571653974. The cubic root of 2605322225 is about 1376.0064873232.

Adding to 2605322225 its reverse (5222235062), we get a palindrome (7827557287).

The spelling of 2605322225 in words is "two billion, six hundred five million, three hundred twenty-two thousand, two hundred twenty-five".