7800225 has 12 divisors (see below), whose sum is σ = 12896496. Its totient is φ = 4160080.

The previous prime is 7800211. The next prime is 7800259. The reversal of 7800225 is 5220087.

It is not a de Polignac number, because 7800225 - 2⁷ = 7800097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7800195 and 7800204.

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, 51927 + ... + 52076.

It is an arithmetic number, because the mean of its divisors is an integer number (1074708).

Almost surely, 2^7800225 is an apocalyptic number.

7800225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7800225 is a deficient number, since it is larger than the sum of its proper divisors (5096271).

7800225 is a wasteful number, since it uses less digits than its factorization.

7800225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104016 (or 104011 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 7800225 is about 2792.8882899250. Note that the first 3 decimals coincide. The cubic root of 7800225 is about 198.3211551656.

The spelling of 7800225 in words is "seven million, eight hundred thousand, two hundred twenty-five".