2170025 has 24 divisors (see below), whose sum is σ = 3166464. Its totient is φ = 1454400.

The previous prime is 2169997. The next prime is 2170039. The reversal of 2170025 is 5200712.

It is not a de Polignac number, because 2170025 - 2¹² = 2165929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2169985 and 2170012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3272 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (131936).

2^2170025 is an apocalyptic number.

2170025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2170025 is a deficient number, since it is larger than the sum of its proper divisors (996439).

2170025 is a wasteful number, since it uses less digits than its factorization.

2170025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 2170025 is about 1473.1004717941. The cubic root of 2170025 is about 129.4657562145.

Adding to 2170025 its reverse (5200712), we get a palindrome (7370737).

The spelling of 2170025 in words is "two million, one hundred seventy thousand, twenty-five".