225105330 has 64 divisors (see below), whose sum is σ = 573775488. Its totient is φ = 56325120.

The previous prime is 225105323. The next prime is 225105359. The reversal of 225105330 is 33501522.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 225105297 and 225105306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290824 + ... + 291596.

It is an arithmetic number, because the mean of its divisors is an integer number (8965242).

Almost surely, 2^225105330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225105330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286887744).

225105330 is an abundant number, since it is smaller than the sum of its proper divisors (348670158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225105330 is a wasteful number, since it uses less digits than its factorization.

225105330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 225105330 is about 15003.5105891921. The cubic root of 225105330 is about 608.3150941342.

Adding to 225105330 its reverse (33501522), we get a palindrome (258606852).

The spelling of 225105330 in words is "two hundred twenty-five million, one hundred five thousand, three hundred thirty".