225334393636 has 27 divisors (see below), whose sum is σ = 433462900017. Its totient is φ = 102419977440.

The previous prime is 225334393631. The next prime is 225334393643. The reversal of 225334393636 is 636393433522.

The square root of 225334393636 is 474694.

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

It can be written as a sum of positive squares in only one way, i.e., 191572536100 + 33761857536 = 437690^2 + 183744^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225334393636.

It is not an unprimeable number, because it can be changed into a prime (225334393631) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 10432480 + ... + 10454056.

Almost surely, 2^225334393636 is an apocalyptic number.

225334393636 is the 474694-th square number.

It is an amenable number.

225334393636 is a deficient number, since it is larger than the sum of its proper divisors (208128506381).

225334393636 is an frugal number, since it uses more digits than its factorization.

225334393636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43180 (or 21590 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 49.

Multiplying 225334393636 by its sum of digits (49), we get a square (11041385288164 = 3322858²).

The spelling of 225334393636 in words is "two hundred twenty-five billion, three hundred thirty-four million, three hundred ninety-three thousand, six hundred thirty-six".