2172215752 has 64 divisors (see below), whose sum is σ = 4795539840. Its totient is φ = 903052800.

The previous prime is 2172215741. The next prime is 2172215761. The reversal of 2172215752 is 2575122712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412963 + ... + 418189.

It is an arithmetic number, because the mean of its divisors is an integer number (74930310).

Almost surely, 2^2172215752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172215752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397769920).

2172215752 is an abundant number, since it is smaller than the sum of its proper divisors (2623324088).

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

2172215752 is a wasteful number, since it uses less digits than its factorization.

2172215752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462 (or 5458 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 2172215752 is about 46607.0354345779. The cubic root of 2172215752 is about 1295.0930901115.

The spelling of 2172215752 in words is "two billion, one hundred seventy-two million, two hundred fifteen thousand, seven hundred fifty-two".