7785225 has 36 divisors (see below), whose sum is σ = 15939456. Its totient is φ = 3558240.

The previous prime is 7785209. The next prime is 7785257. The reversal of 7785225 is 5225877.

7785225 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7785225 - 2⁴ = 7785209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7785225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 897 + ... + 4046.

Almost surely, 2^7785225 is an apocalyptic number.

7785225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7785225 is an abundant number, since it is smaller than the sum of its proper divisors (8154231).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7785225 is a wasteful number, since it uses less digits than its factorization.

7785225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966 (or 4958 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 7785225 is about 2790.2016056192. The cubic root of 7785225 is about 198.1939483117.

It can be divided in two parts, 77852 and 25, that added together give a palindrome (77877).

The spelling of 7785225 in words is "seven million, seven hundred eighty-five thousand, two hundred twenty-five".