225502345 has 8 divisors (see below), whose sum is σ = 270701640. Its totient is φ = 180336000.

The previous prime is 225502313. The next prime is 225502349. The reversal of 225502345 is 543205522.

It can be written as a sum of positive squares in 4 ways, for example, as 22810176 + 202692169 = 4776^2 + 14237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225502345 - 2⁵ = 225502313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225502349) 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 7 ways as a sum of consecutive naturals, for example, 10845 + ... + 23845.

It is an arithmetic number, because the mean of its divisors is an integer number (33837705).

Almost surely, 2^225502345 is an apocalyptic number.

It is an amenable number.

225502345 is a deficient number, since it is larger than the sum of its proper divisors (45199295).

225502345 is a wasteful number, since it uses less digits than its factorization.

225502345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 225502345 is about 15016.7354974375. The cubic root of 225502345 is about 608.6725095915.

Adding to 225502345 its reverse (543205522), we get a palindrome (768707867).

The spelling of 225502345 in words is "two hundred twenty-five million, five hundred two thousand, three hundred forty-five".