225105055 has 8 divisors (see below), whose sum is σ = 308715552. Its totient is φ = 154357728.

The previous prime is 225105053. The next prime is 225105157. The reversal of 225105055 is 550501522.

It is a happy number.

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

It is not a de Polignac number, because 225105055 - 2¹ = 225105053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225105053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215752 + ... + 3215821.

It is an arithmetic number, because the mean of its divisors is an integer number (38589444).

Almost surely, 2^225105055 is an apocalyptic number.

225105055 is a deficient number, since it is larger than the sum of its proper divisors (83610497).

225105055 is an equidigital number, since it uses as much as digits as its factorization.

225105055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431585.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 225105055 is about 15003.5014246675. The cubic root of 225105055 is about 608.3148464180.

Adding to 225105055 its reverse (550501522), we get a palindrome (775606577).

The spelling of 225105055 in words is "two hundred twenty-five million, one hundred five thousand, fifty-five".