2117025 has 27 divisors (see below), whose sum is σ = 3831321. Its totient is φ = 1117440.

The previous prime is 2116997. The next prime is 2117039. The reversal of 2117025 is 5207112.

The square root of 2117025 is 1455.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 77841 + 2039184 = 279^2 + 1428^2 .

It is not a de Polignac number, because 2117025 - 2¹¹ = 2114977 is a prime.

2117025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2116989 and 2117007.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21777 + ... + 21873.

2^2117025 is an apocalyptic number.

2117025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2117025 is the 1455-th square number.

2117025 is the 728-th centered octagonal number.

It is an amenable number.

2117025 is a deficient number, since it is larger than the sum of its proper divisors (1714296).

2117025 is an equidigital number, since it uses as much as digits as its factorization.

2117025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The cubic root of 2117025 is about 128.4030467731.

The spelling of 2117025 in words is "two million, one hundred seventeen thousand, twenty-five".