2165025 has 12 divisors (see below), whose sum is σ = 3579632. Its totient is φ = 1154640.

The previous prime is 2165017. The next prime is 2165027. The reversal of 2165025 is 5205612.

It is not a de Polignac number, because 2165025 - 2³ = 2165017 is a prime.

It is a Duffinian number.

2165025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2164992 and 2165010.

It is not an unprimeable number, because it can be changed into a prime (2165027) 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, 14359 + ... + 14508.

2^2165025 is an apocalyptic number.

2165025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2165025 is a deficient number, since it is larger than the sum of its proper divisors (1414607).

2165025 is a wasteful number, since it uses less digits than its factorization.

2165025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28880 (or 28875 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2165025 is about 1471.4023922775. The cubic root of 2165025 is about 129.3662448275.

The spelling of 2165025 in words is "two million, one hundred sixty-five thousand, twenty-five".