2172825717 has 8 divisors (see below), whose sum is σ = 2933773440. Its totient is φ = 1430214240.

The previous prime is 2172825713. The next prime is 2172825761. The reversal of 2172825717 is 7175282712.

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

It is not a de Polignac number, because 2172825717 - 2² = 2172825713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172825713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4583784 + ... + 4584257.

It is an arithmetic number, because the mean of its divisors is an integer number (366721680).

Almost surely, 2^2172825717 is an apocalyptic number.

It is an amenable number.

2172825717 is a deficient number, since it is larger than the sum of its proper divisors (760947723).

2172825717 is an equidigital number, since it uses as much as digits as its factorization.

2172825717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168123.

The product of its digits is 109760, while the sum is 42.

The square root of 2172825717 is about 46613.5786761755. The cubic root of 2172825717 is about 1295.2143008347.

The spelling of 2172825717 in words is "two billion, one hundred seventy-two million, eight hundred twenty-five thousand, seven hundred seventeen".