775225 has 12 divisors (see below), whose sum is σ = 1049040. Its totient is φ = 563600.

The previous prime is 775193. The next prime is 775237. The reversal of 775225 is 522577.

It is not a de Polignac number, because 775225 - 2⁵ = 775193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 775193 and 775202.

It is an unprimeable number.

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, 1135 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (87420).

2⁷⁷⁵²²⁵ is an apocalyptic number.

It is an amenable number.

775225 is a deficient number, since it is larger than the sum of its proper divisors (273815).

775225 is a wasteful number, since it uses less digits than its factorization.

775225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840 (or 2835 counting only the distinct ones).

The product of its digits is 4900, while the sum is 28.

The square root of 775225 is about 880.4686252218. The cubic root of 775225 is about 91.8634157884.

It can be divided in two parts, 7752 and 25, that added together give a palindrome (7777).

The spelling of 775225 in words is "seven hundred seventy-five thousand, two hundred twenty-five".