225364736 has 18 divisors (see below), whose sum is σ = 449849652. Its totient is φ = 112682240.

The previous prime is 225364723. The next prime is 225364739. The reversal of 225364736 is 637463522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 225364736.

It is not an unprimeable number, because it can be changed into a prime (225364739) 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 as a sum of consecutive naturals, namely, 439910 + ... + 440421.

Almost surely, 2^225364736 is an apocalyptic number.

It is an amenable number.

225364736 is a deficient number, since it is larger than the sum of its proper divisors (224484916).

225364736 is an frugal number, since it uses more digits than its factorization.

225364736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880347 (or 880333 counting only the distinct ones).

The product of its digits is 181440, while the sum is 38.

The square root of 225364736 is about 15012.1529435321. The cubic root of 225364736 is about 608.5486736899.

It can be divided in two parts, 22536 and 4736, that added together give a palindrome (27272).

The spelling of 225364736 in words is "two hundred twenty-five million, three hundred sixty-four thousand, seven hundred thirty-six".