2173722252 has 24 divisors (see below), whose sum is σ = 5462174256. Its totient is φ = 668837568.

The previous prime is 2173722217. The next prime is 2173722277. The reversal of 2173722252 is 2522273712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6966903 + ... + 6967214.

It is an arithmetic number, because the mean of its divisors is an integer number (227590594).

Almost surely, 2^2173722252 is an apocalyptic number.

It is an amenable number.

2173722252 is an abundant number, since it is smaller than the sum of its proper divisors (3288452004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173722252 is a wasteful number, since it uses less digits than its factorization.

2173722252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13934137 (or 13934135 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 2173722252 is about 46623.1943564574. The cubic root of 2173722252 is about 1295.3924168661.

Adding to 2173722252 its reverse (2522273712), we get a palindrome (4695995964).

The spelling of 2173722252 in words is "two billion, one hundred seventy-three million, seven hundred twenty-two thousand, two hundred fifty-two".