225321623005 has 4 divisors (see below), whose sum is σ = 270385947612. Its totient is φ = 180257298400.

The previous prime is 225321622987. The next prime is 225321623053. The reversal of 225321623005 is 500326123522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158647669636 + 66673953369 = 398306^2 + 258213^2 .

It is not a de Polignac number, because 225321623005 - 2¹⁵ = 225321590237 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 22532162296 + ... + 22532162305.

It is an arithmetic number, because the mean of its divisors is an integer number (67596486903).

Almost surely, 2^225321623005 is an apocalyptic number.

It is an amenable number.

225321623005 is a deficient number, since it is larger than the sum of its proper divisors (45064324607).

225321623005 is an equidigital number, since it uses as much as digits as its factorization.

225321623005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45064324606.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 225321623005 its reverse (500326123522), we get a palindrome (725647746527).

The spelling of 225321623005 in words is "two hundred twenty-five billion, three hundred twenty-one million, six hundred twenty-three thousand, five".