225435439 has 2 divisors, whose sum is σ = 225435440. Its totient is φ = 225435438.

The previous prime is 225435421. The next prime is 225435451. The reversal of 225435439 is 934534522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225435439 - 2⁵ = 225435407 is a prime.

It is a super-2 number, since 2×225435439² = 101642274314245442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225435398 and 225435407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225435479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112717719 + 112717720.

It is an arithmetic number, because the mean of its divisors is an integer number (112717720).

Almost surely, 2^225435439 is an apocalyptic number.

225435439 is a deficient number, since it is larger than the sum of its proper divisors (1).

225435439 is an equidigital number, since it uses as much as digits as its factorization.

225435439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

The square root of 225435439 is about 15014.5076176344. The cubic root of 225435439 is about 608.6123064169.

The spelling of 225435439 in words is "two hundred twenty-five million, four hundred thirty-five thousand, four hundred thirty-nine".