225034405 has 4 divisors (see below), whose sum is σ = 270041292. Its totient is φ = 180027520.

The previous prime is 225034391. The next prime is 225034409. The reversal of 225034405 is 504430522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504430522 = 2 ⋅252215261.

It can be written as a sum of positive squares in 2 ways, for example, as 74407876 + 150626529 = 8626^2 + 12273^2 .

It is not a de Polignac number, because 225034405 - 2⁵ = 225034373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225034405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225034409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22503436 + ... + 22503445.

It is an arithmetic number, because the mean of its divisors is an integer number (67510323).

Almost surely, 2^225034405 is an apocalyptic number.

It is an amenable number.

225034405 is a deficient number, since it is larger than the sum of its proper divisors (45006887).

225034405 is an equidigital number, since it uses as much as digits as its factorization.

225034405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45006886.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 225034405 is about 15001.1467894958. The cubic root of 225034405 is about 608.2511991862.

Adding to 225034405 its reverse (504430522), we get a palindrome (729464927).

The spelling of 225034405 in words is "two hundred twenty-five million, thirty-four thousand, four hundred five".