2217425 has 12 divisors (see below), whose sum is σ = 3142656. Its totient is φ = 1520400.

The previous prime is 2217421. The next prime is 2217443. The reversal of 2217425 is 5247122.

It is a happy number.

2217425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2217425 - 2² = 2217421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2217425.

It is not an unprimeable number, because it can be changed into a prime (2217421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6161 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (261888).

2^2217425 is an apocalyptic number.

2217425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2217425 is a deficient number, since it is larger than the sum of its proper divisors (925231).

2217425 is a wasteful number, since it uses less digits than its factorization.

2217425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12688 (or 12683 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 2217425 is about 1489.1020784352. The cubic root of 2217425 is about 130.4016179369.

The spelling of 2217425 in words is "two million, two hundred seventeen thousand, four hundred twenty-five".