2217725 has 12 divisors (see below), whose sum is σ = 2815296. Its totient is φ = 1732080.

The previous prime is 2217673. The next prime is 2217749. The reversal of 2217725 is 5277122.

It is not a de Polignac number, because 2217725 - 2¹⁰ = 2216701 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2217694 and 2217703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (234608).

2^2217725 is an apocalyptic number.

2217725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2217725 is a deficient number, since it is larger than the sum of its proper divisors (597571).

2217725 is a wasteful number, since it uses less digits than its factorization.

2217725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2111 counting only the distinct ones).

The product of its digits is 1960, while the sum is 26.

The square root of 2217725 is about 1489.2028068735. The cubic root of 2217725 is about 130.4074984397.

The spelling of 2217725 in words is "two million, two hundred seventeen thousand, seven hundred twenty-five".