32228225 has 6 divisors (see below), whose sum is σ = 39963030. Its totient is φ = 25782560.

The previous prime is 32228213. The next prime is 32228233. The reversal of 32228225 is 52282223.

It can be written as a sum of positive squares in 3 ways, for example, as 226576 + 32001649 = 476^2 + 5657^2 .

It is a de Polignac number, because none of the positive numbers 2^k-32228225 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32228194 and 32228203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644540 + ... + 644589.

It is an arithmetic number, because the mean of its divisors is an integer number (6660505).

Almost surely, 2^32228225 is an apocalyptic number.

It is an amenable number.

32228225 is a deficient number, since it is larger than the sum of its proper divisors (7734805).

32228225 is a wasteful number, since it uses less digits than its factorization.

32228225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289139 (or 1289134 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 32228225 is about 5676.9908402251. The cubic root of 32228225 is about 318.2331827405.

The spelling of 32228225 in words is "thirty-two million, two hundred twenty-eight thousand, two hundred twenty-five".