225241100 has 72 divisors (see below), whose sum is σ = 561401568. Its totient is φ = 76838400.

The previous prime is 225241063. The next prime is 225241103. The reversal of 225241100 is 1142522.

It is not an unprimeable number, because it can be changed into a prime (225241103) 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 23 ways as a sum of consecutive naturals, for example, 162410 + ... + 163790.

It is an arithmetic number, because the mean of its divisors is an integer number (7797244).

Almost surely, 2^225241100 is an apocalyptic number.

225241100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225241100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280700784).

225241100 is an abundant number, since it is smaller than the sum of its proper divisors (336160468).

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

225241100 is a wasteful number, since it uses less digits than its factorization.

225241100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 225241100 is about 15008.0345148857. The cubic root of 225241100 is about 608.4373692506.

Adding to 225241100 its reverse (1142522), we get a palindrome (226383622).

The spelling of 225241100 in words is "two hundred twenty-five million, two hundred forty-one thousand, one hundred".