32287225 has 6 divisors (see below), whose sum is σ = 40036190. Its totient is φ = 25829760.

The previous prime is 32287223. The next prime is 32287247. The reversal of 32287225 is 52278223.

It can be written as a sum of positive squares in 3 ways, for example, as 522729 + 31764496 = 723^2 + 5636^2 .

It is not a de Polignac number, because 32287225 - 2¹ = 32287223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32287223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645720 + ... + 645769.

Almost surely, 2^32287225 is an apocalyptic number.

It is an amenable number.

32287225 is a deficient number, since it is larger than the sum of its proper divisors (7748965).

32287225 is a wasteful number, since it uses less digits than its factorization.

32287225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291499 (or 1291494 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 32287225 is about 5682.1848790760. The cubic root of 32287225 is about 318.4272601562.

The spelling of 32287225 in words is "thirty-two million, two hundred eighty-seven thousand, two hundred twenty-five".