243543323025 has 96 divisors (see below), whose sum is σ = 475807582080. Its totient is φ = 121709352960.

The previous prime is 243543322999. The next prime is 243543323077. The reversal of 243543323025 is 520323345342.

It is a happy number.

243543323025 is a `hidden beast` number, since 24 + 354 + 33 + 230 + 25 = 666.

It is not a de Polignac number, because 243543323025 - 2¹⁵ = 243543290257 is a prime.

It is a super-3 number, since 3×243543323025³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2558077 + ... + 2651573.

It is an arithmetic number, because the mean of its divisors is an integer number (4956328980).

Almost surely, 2^243543323025 is an apocalyptic number.

243543323025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243543323025 is a deficient number, since it is larger than the sum of its proper divisors (232264259055).

243543323025 is a wasteful number, since it uses less digits than its factorization.

243543323025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93760 (or 93749 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 243543323025 its reverse (520323345342), we get a palindrome (763866668367).

The spelling of 243543323025 in words is "two hundred forty-three billion, five hundred forty-three million, three hundred twenty-three thousand, twenty-five".