225425205 has 12 divisors (see below), whose sum is σ = 390737100. Its totient is φ = 120226752.

The previous prime is 225425203. The next prime is 225425279. The reversal of 225425205 is 502524522.

It can be written as a sum of positive squares in 2 ways, for example, as 133610481 + 91814724 = 11559^2 + 9582^2 .

It is not a de Polignac number, because 225425205 - 2¹ = 225425203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225425203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2504680 + ... + 2504769.

It is an arithmetic number, because the mean of its divisors is an integer number (32561425).

Almost surely, 2^225425205 is an apocalyptic number.

It is an amenable number.

225425205 is a deficient number, since it is larger than the sum of its proper divisors (165311895).

225425205 is a wasteful number, since it uses less digits than its factorization.

225425205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009460 (or 5009457 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 225425205 is about 15014.1668100498. The cubic root of 225425205 is about 608.6030966366.

Adding to 225425205 its reverse (502524522), we get a palindrome (727949727).

The spelling of 225425205 in words is "two hundred twenty-five million, four hundred twenty-five thousand, two hundred five".