225245403 has 6 divisors (see below), whose sum is σ = 325354484. Its totient is φ = 150163596.

The previous prime is 225245351. The next prime is 225245443. The reversal of 225245403 is 304542522.

It is a happy number.

225245403 is a `hidden beast` number, since 2 + 252 + 4 + 5 + 403 = 666.

It is not a de Polignac number, because 225245403 - 2⁸ = 225245147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225245443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12513625 + ... + 12513642.

Almost surely, 2^225245403 is an apocalyptic number.

225245403 is a deficient number, since it is larger than the sum of its proper divisors (100109081).

225245403 is a wasteful number, since it uses less digits than its factorization.

225245403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25027273 (or 25027270 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 225245403 is about 15008.1778707477. The cubic root of 225245403 is about 608.4412437497.

Adding to 225245403 its reverse (304542522), we get a palindrome (529787925).

It can be divided in two parts, 22 and 5245403, that added together give a palindrome (5245425).

The spelling of 225245403 in words is "two hundred twenty-five million, two hundred forty-five thousand, four hundred three".