225001116 has 72 divisors (see below), whose sum is σ = 601910400. Its totient is φ = 70670880.

The previous prime is 225001099. The next prime is 225001121. The reversal of 225001116 is 611100522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143545 + ... + 145103.

Almost surely, 2^225001116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225001116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300955200).

225001116 is an abundant number, since it is smaller than the sum of its proper divisors (376909284).

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

225001116 is a wasteful number, since it uses less digits than its factorization.

225001116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 225001116 is about 15000.0371999539. The cubic root of 225001116 is about 608.2212051464.

Adding to 225001116 its reverse (611100522), we get a palindrome (836101638).

The spelling of 225001116 in words is "two hundred twenty-five million, one thousand, one hundred sixteen".