243254242055 has 16 divisors (see below), whose sum is σ = 335202019200. Its totient is φ = 167601008160.

The previous prime is 243254242051. The next prime is 243254242067. The reversal of 243254242055 is 550242452342.

It is not a de Polignac number, because 243254242055 - 2² = 243254242051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243254242051) 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 15 ways as a sum of consecutive naturals, for example, 116388545 + ... + 116390634.

It is an arithmetic number, because the mean of its divisors is an integer number (20950126200).

Almost surely, 2^243254242055 is an apocalyptic number.

243254242055 is a deficient number, since it is larger than the sum of its proper divisors (91947777145).

243254242055 is a wasteful number, since it uses less digits than its factorization.

243254242055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232779214.

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 243254242055 its reverse (550242452342), we get a palindrome (793496694397).

The spelling of 243254242055 in words is "two hundred forty-three billion, two hundred fifty-four million, two hundred forty-two thousand, fifty-five".