2172325 has 12 divisors (see below), whose sum is σ = 2781568. Its totient is φ = 1681200.

The previous prime is 2172323. The next prime is 2172337. The reversal of 2172325 is 5232712.

It is not a de Polignac number, because 2172325 - 2¹ = 2172323 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2172296 and 2172305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627 + ... + 2176.

2^2172325 is an apocalyptic number.

2172325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2172325 is a deficient number, since it is larger than the sum of its proper divisors (609243).

2172325 is a wasteful number, since it uses less digits than its factorization.

2172325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2839 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 2172325 is about 1473.8809314188. The cubic root of 2172325 is about 129.5114801269.

The spelling of 2172325 in words is "two million, one hundred seventy-two thousand, three hundred twenty-five".