225397085 has 8 divisors (see below), whose sum is σ = 271121496. Its totient is φ = 179887680.

The previous prime is 225397043. The next prime is 225397093. The reversal of 225397085 is 580793522.

It can be written as a sum of positive squares in 4 ways, for example, as 5112121 + 220284964 = 2261^2 + 14842^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225397085 - 2¹² = 225392989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51434 + ... + 55643.

It is an arithmetic number, because the mean of its divisors is an integer number (33890187).

Almost surely, 2^225397085 is an apocalyptic number.

It is an amenable number.

225397085 is a deficient number, since it is larger than the sum of its proper divisors (45724411).

225397085 is a wasteful number, since it uses less digits than its factorization.

225397085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107503.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 225397085 is about 15013.2303319439. The cubic root of 225397085 is about 608.5777894536.

The spelling of 225397085 in words is "two hundred twenty-five million, three hundred ninety-seven thousand, eighty-five".