2172755 has 8 divisors (see below), whose sum is σ = 2807952. Its totient is φ = 1604448.

The previous prime is 2172733. The next prime is 2172761. The reversal of 2172755 is 5572712.

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

It is a cyclic number.

It is not a de Polignac number, because 2172755 - 2¹² = 2168659 is a prime.

It is a Duffinian number.

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, 16649 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (350994).

2^2172755 is an apocalyptic number.

2172755 is a deficient number, since it is larger than the sum of its proper divisors (635197).

2172755 is a wasteful number, since it uses less digits than its factorization.

2172755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33445.

The product of its digits is 4900, while the sum is 29.

The square root of 2172755 is about 1474.0267975854. The cubic root of 2172755 is about 129.5200249292.

The spelling of 2172755 in words is "two million, one hundred seventy-two thousand, seven hundred fifty-five".