2173372225 has 24 divisors (see below), whose sum is σ = 2858944248. Its totient is φ = 1633305600.

The previous prime is 2173372213. The next prime is 2173372241. The reversal of 2173372225 is 5222733712.

It can be written as a sum of positive squares in 12 ways, for example, as 603390096 + 1569982129 = 24564^2 + 39623^2 .

It is not a de Polignac number, because 2173372225 - 2¹³ = 2173364033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232135 + ... + 241315.

It is an arithmetic number, because the mean of its divisors is an integer number (119122677).

Almost surely, 2^2173372225 is an apocalyptic number.

2173372225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2173372225 is a deficient number, since it is larger than the sum of its proper divisors (685572023).

2173372225 is a wasteful number, since it uses less digits than its factorization.

2173372225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9765 (or 9760 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 2173372225 is about 46619.4404192071. The cubic root of 2173372225 is about 1295.3228822754.

The spelling of 2173372225 in words is "two billion, one hundred seventy-three million, three hundred seventy-two thousand, two hundred twenty-five".