225115056 has 120 divisors (see below), whose sum is σ = 656148480. Its totient is φ = 71971200.

The previous prime is 225115043. The next prime is 225115057. The reversal of 225115056 is 650511522.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (225115057) 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 23 ways as a sum of consecutive naturals, for example, 941785 + ... + 942023.

It is an arithmetic number, because the mean of its divisors is an integer number (5467904).

Almost surely, 2^225115056 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 225115056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328074240).

225115056 is an abundant number, since it is smaller than the sum of its proper divisors (431033424).

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

225115056 is a wasteful number, since it uses less digits than its factorization.

225115056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 225115056 is about 15003.8347098333. The cubic root of 225115056 is about 608.3238550513.

Adding to 225115056 its reverse (650511522), we get a palindrome (875626578).

The spelling of 225115056 in words is "two hundred twenty-five million, one hundred fifteen thousand, fifty-six".