243054355025 has 24 divisors (see below), whose sum is σ = 321718248000. Its totient is φ = 181615089600.

The previous prime is 243054355007. The next prime is 243054355073. The reversal of 243054355025 is 520553450342.

It is a de Polignac number, because none of the positive numbers 2^k-243054355025 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243054355025.

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 23 ways as a sum of consecutive naturals, for example, 3569750 + ... + 3637199.

It is an arithmetic number, because the mean of its divisors is an integer number (13404927000).

Almost surely, 2^243054355025 is an apocalyptic number.

243054355025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243054355025 is a deficient number, since it is larger than the sum of its proper divisors (78663892975).

243054355025 is a wasteful number, since it uses less digits than its factorization.

243054355025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207049 (or 7207044 counting only the distinct ones).

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

The spelling of 243054355025 in words is "two hundred forty-three billion, fifty-four million, three hundred fifty-five thousand, twenty-five".