225212888356 has 9 divisors (see below), whose sum is σ = 394124215611. Its totient is φ = 112605969612.

The previous prime is 225212888323. The next prime is 225212888363. The reversal of 225212888356 is 653888212522.

The square root of 225212888356 is 474566.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 830491 + ... + 1067773.

Almost surely, 2^225212888356 is an apocalyptic number.

225212888356 is the 474566-th square number.

It is an amenable number.

225212888356 is a deficient number, since it is larger than the sum of its proper divisors (168911327255).

225212888356 is an frugal number, since it uses more digits than its factorization.

225212888356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474570 (or 237285 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The spelling of 225212888356 in words is "two hundred twenty-five billion, two hundred twelve million, eight hundred eighty-eight thousand, three hundred fifty-six".