785225 has 18 divisors (see below), whose sum is σ = 1134414. Its totient is φ = 537600.

The previous prime is 785221. The next prime is 785227. The reversal of 785225 is 522587.

It can be written as a sum of positive squares in 3 ways, for example, as 170569 + 614656 = 413^2 + 784^2 .

It is not a de Polignac number, because 785225 - 2² = 785221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (785221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 905 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (63023).

2⁷⁸⁵²²⁵ is an apocalyptic number.

It is an amenable number.

785225 is a deficient number, since it is larger than the sum of its proper divisors (349189).

785225 is a wasteful number, since it uses less digits than its factorization.

785225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 653 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 785225 is about 886.1292230821. The cubic root of 785225 is about 92.2567262277.

The spelling of 785225 in words is "seven hundred eighty-five thousand, two hundred twenty-five".