225212568 has 128 divisors (see below), whose sum is σ = 663552000. Its totient is φ = 62375040.

The previous prime is 225212557. The next prime is 225212593. The reversal of 225212568 is 865212522.

It is a happy number.

225212568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 942193 + ... + 942431.

It is an arithmetic number, because the mean of its divisors is an integer number (5184000).

Almost surely, 2^225212568 is an apocalyptic number.

225212568 is a gapful number since it is divisible by the number (28) 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 225212568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331776000).

225212568 is an abundant number, since it is smaller than the sum of its proper divisors (438339432).

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

225212568 is a wasteful number, since it uses less digits than its factorization.

225212568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 401 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 225212568 is about 15007.0839272658. The cubic root of 225212568 is about 608.4116772727.

The spelling of 225212568 in words is "two hundred twenty-five million, two hundred twelve thousand, five hundred sixty-eight".