7806225 has 24 divisors (see below), whose sum is σ = 14751040. Its totient is φ = 3568320.

The previous prime is 7806221. The next prime is 7806229. The reversal of 7806225 is 5226087.

It is an interprime number because it is at equal distance from previous prime (7806221) and next prime (7806229).

It is not a de Polignac number, because 7806225 - 2² = 7806221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7806192 and 7806201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7806221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6910 + ... + 7959.

Almost surely, 2^7806225 is an apocalyptic number.

7806225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7806225 is a deficient number, since it is larger than the sum of its proper divisors (6944815).

7806225 is a wasteful number, since it uses less digits than its factorization.

7806225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14889 (or 14884 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 7806225 is about 2793.9622402602. The cubic root of 7806225 is about 198.3719922445.

It can be divided in two parts, 78062 and 25, that added together give a palindrome (78087).

The spelling of 7806225 in words is "seven million, eight hundred six thousand, two hundred twenty-five".