8542225 has 12 divisors (see below), whose sum is σ = 10629900. Its totient is φ = 6809600.

The previous prime is 8542201. The next prime is 8542243. The reversal of 8542225 is 5222458.

It can be written as a sum of positive squares in 6 ways, for example, as 1635841 + 6906384 = 1279^2 + 2628^2 .

It is not a de Polignac number, because 8542225 - 2⁹ = 8541713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8542193 and 8542202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10845 + ... + 11605.

It is an arithmetic number, because the mean of its divisors is an integer number (885825).

Almost surely, 2^8542225 is an apocalyptic number.

It is an amenable number.

8542225 is a deficient number, since it is larger than the sum of its proper divisors (2087675).

8542225 is a wasteful number, since it uses less digits than its factorization.

8542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1215 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 8542225 is about 2922.7085041105. The cubic root of 8542225 is about 204.4201340838.

The spelling of 8542225 in words is "eight million, five hundred forty-two thousand, two hundred twenty-five".