225603640023 has 16 divisors (see below), whose sum is σ = 301105175040. Its totient is φ = 150252348896.

The previous prime is 225603639983. The next prime is 225603640057. The reversal of 225603640023 is 320046306522.

225603640023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 225603640023 - 2¹² = 225603635927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225603640063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13675486 + ... + 13691972.

It is an arithmetic number, because the mean of its divisors is an integer number (18819073440).

Almost surely, 2^225603640023 is an apocalyptic number.

225603640023 is a deficient number, since it is larger than the sum of its proper divisors (75501535017).

225603640023 is a wasteful number, since it uses less digits than its factorization.

225603640023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20766.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 225603640023 its reverse (320046306522), we get a palindrome (545649946545).

The spelling of 225603640023 in words is "two hundred twenty-five billion, six hundred three million, six hundred forty thousand, twenty-three".