243252331225 has 12 divisors (see below), whose sum is σ = 317508306640. Its totient is φ = 184359661200.

The previous prime is 243252331193. The next prime is 243252331253. The reversal of 243252331225 is 522133252342.

It is not a de Polignac number, because 243252331225 - 2⁵ = 243252331193 is a prime.

It is a super-2 number, since 2×243252331225² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256054611 + ... + 256055560.

Almost surely, 2^243252331225 is an apocalyptic number.

243252331225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243252331225 is a deficient number, since it is larger than the sum of its proper divisors (74255975415).

243252331225 is a wasteful number, since it uses less digits than its factorization.

243252331225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512110200 (or 512110195 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

Adding to 243252331225 its reverse (522133252342), we get a palindrome (765385583567).

The spelling of 243252331225 in words is "two hundred forty-three billion, two hundred fifty-two million, three hundred thirty-one thousand, two hundred twenty-five".