2172625211 has 8 divisors (see below), whose sum is σ = 2300848704. Its totient is φ = 2044448640.

The previous prime is 2172625187. The next prime is 2172625229. The reversal of 2172625211 is 1125262712.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2172625211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2172625291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 139181 + ... + 154001.

It is an arithmetic number, because the mean of its divisors is an integer number (287606088).

Almost surely, 2^2172625211 is an apocalyptic number.

2172625211 is a deficient number, since it is larger than the sum of its proper divisors (128223493).

2172625211 is a wasteful number, since it uses less digits than its factorization.

2172625211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23461.

The product of its digits is 3360, while the sum is 29.

The square root of 2172625211 is about 46611.4279013205. The cubic root of 2172625211 is about 1295.1744592857.

Adding to 2172625211 its reverse (1125262712), we get a palindrome (3297887923).

The spelling of 2172625211 in words is "two billion, one hundred seventy-two million, six hundred twenty-five thousand, two hundred eleven".