7809225 has 12 divisors (see below), whose sum is σ = 12911376. Its totient is φ = 4164880.

The previous prime is 7809223. The next prime is 7809253. The reversal of 7809225 is 5229087.

7809225 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 7809225 - 2¹ = 7809223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7809223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51987 + ... + 52136.

It is an arithmetic number, because the mean of its divisors is an integer number (1075948).

Almost surely, 2^7809225 is an apocalyptic number.

7809225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7809225 is a deficient number, since it is larger than the sum of its proper divisors (5102151).

7809225 is a wasteful number, since it uses less digits than its factorization.

7809225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104136 (or 104131 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7809225 is about 2794.4990606547. The cubic root of 7809225 is about 198.3974010158.

The spelling of 7809225 in words is "seven million, eight hundred nine thousand, two hundred twenty-five".