717225 has 24 divisors (see below), whose sum is σ = 1211232. Its totient is φ = 374400.

The previous prime is 717191. The next prime is 717229. The reversal of 717225 is 522717.

It is not a de Polignac number, because 717225 - 2⁶ = 717161 is a prime.

It is a Curzon number.

717225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 717195 and 717204.

It is not an unprimeable number, because it can be changed into a prime (717229) 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 23 ways as a sum of consecutive naturals, for example, 5410 + ... + 5540.

It is an arithmetic number, because the mean of its divisors is an integer number (50468).

2⁷¹⁷²²⁵ is an apocalyptic number.

717225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

717225 is a deficient number, since it is larger than the sum of its proper divisors (494007).

717225 is a wasteful number, since it uses less digits than its factorization.

717225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 212 counting only the distinct ones).

The product of its digits is 980, while the sum is 24.

The square root of 717225 is about 846.8913743804. The cubic root of 717225 is about 89.5127994761.

The spelling of 717225 in words is "seven hundred seventeen thousand, two hundred twenty-five".