243355502225 has 48 divisors (see below), whose sum is σ = 334334601216. Its totient is φ = 174225480000.

The previous prime is 243355502219. The next prime is 243355502281. The reversal of 243355502225 is 522205553342.

It is not a de Polignac number, because 243355502225 - 2⁴ = 243355502209 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 34027400 + ... + 34034550.

It is an arithmetic number, because the mean of its divisors is an integer number (6965304192).

Almost surely, 2^243355502225 is an apocalyptic number.

243355502225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243355502225 is a deficient number, since it is larger than the sum of its proper divisors (90979098991).

243355502225 is a wasteful number, since it uses less digits than its factorization.

243355502225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086 (or 9081 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 243355502225 in words is "two hundred forty-three billion, three hundred fifty-five million, five hundred two thousand, two hundred twenty-five".