2172530875 has 16 divisors (see below), whose sum is σ = 2712659040. Its totient is φ = 1737165600.

The previous prime is 2172530831. The next prime is 2172530879. The reversal of 2172530875 is 5780352712.

It is a happy number.

2172530875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2172530875 - 2⁹ = 2172530363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2172530879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404709 + ... + 410041.

It is an arithmetic number, because the mean of its divisors is an integer number (169541190).

Almost surely, 2^2172530875 is an apocalyptic number.

2172530875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2172530875 is a deficient number, since it is larger than the sum of its proper divisors (540128165).

2172530875 is an equidigital number, since it uses as much as digits as its factorization.

2172530875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8607 (or 8597 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 2172530875 is about 46610.4159496566. The cubic root of 2172530875 is about 1295.1557134008.

The spelling of 2172530875 in words is "two billion, one hundred seventy-two million, five hundred thirty thousand, eight hundred seventy-five".