225545232143 has 48 divisors (see below), whose sum is σ = 302860228608. Its totient is φ = 164007465600.

The previous prime is 225545232127. The next prime is 225545232173. The reversal of 225545232143 is 341232545522.

225545232143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225545232143 - 2⁴ = 225545232127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225545232097 and 225545232106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225545232173) 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 47 ways as a sum of consecutive naturals, for example, 657530 + ... + 939912.

It is an arithmetic number, because the mean of its divisors is an integer number (6309588096).

Almost surely, 2^225545232143 is an apocalyptic number.

225545232143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

225545232143 is a deficient number, since it is larger than the sum of its proper divisors (77314996465).

225545232143 is a wasteful number, since it uses less digits than its factorization.

225545232143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282476 (or 282465 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

Adding to 225545232143 its reverse (341232545522), we get a palindrome (566777777665).

The spelling of 225545232143 in words is "two hundred twenty-five billion, five hundred forty-five million, two hundred thirty-two thousand, one hundred forty-three".