225330409 has 2 divisors, whose sum is σ = 225330410. Its totient is φ = 225330408.

The previous prime is 225330403. The next prime is 225330431. The reversal of 225330409 is 904033522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139712400 + 85618009 = 11820^2 + 9253^2 .

It is a cyclic number.

It is not a de Polignac number, because 225330409 - 2¹¹ = 225328361 is a prime.

It is not a weakly prime, because it can be changed into another prime (225330403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112665204 + 112665205.

It is an arithmetic number, because the mean of its divisors is an integer number (112665205).

Almost surely, 2^225330409 is an apocalyptic number.

It is an amenable number.

225330409 is a deficient number, since it is larger than the sum of its proper divisors (1).

225330409 is an equidigital number, since it uses as much as digits as its factorization.

225330409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 225330409 is about 15011.0095929621. The cubic root of 225330409 is about 608.5177745774.

The spelling of 225330409 in words is "two hundred twenty-five million, three hundred thirty thousand, four hundred nine".