243052055 has 4 divisors (see below), whose sum is σ = 291662472. Its totient is φ = 194441640.

The previous prime is 243052031. The next prime is 243052057. The reversal of 243052055 is 550250342.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-243052055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243052057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24305201 + ... + 24305210.

It is an arithmetic number, because the mean of its divisors is an integer number (72915618).

Almost surely, 2^243052055 is an apocalyptic number.

243052055 is a deficient number, since it is larger than the sum of its proper divisors (48610417).

243052055 is an equidigital number, since it uses as much as digits as its factorization.

243052055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48610416.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 243052055 is about 15590.1268436148. The cubic root of 243052055 is about 624.0697028961.

The spelling of 243052055 in words is "two hundred forty-three million, fifty-two thousand, fifty-five".