242544044552543 has 4 divisors (see below), whose sum is σ = 242544176301240. Its totient is φ = 242543912803848.

The previous prime is 242544044552531. The next prime is 242544044552599. The reversal of 242544044552543 is 345255440445242.

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

It is a cyclic number.

It is not a de Polignac number, because 242544044552543 - 2⁸ = 242544044552287 is a prime.

It is a super-2 number, since 2×242544044552543² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242544044552143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63073205 + ... + 66808062.

It is an arithmetic number, because the mean of its divisors is an integer number (60636044075310).

Almost surely, 2^{242544044552543} is an apocalyptic number.

242544044552543 is a deficient number, since it is larger than the sum of its proper divisors (131748697).

242544044552543 is a wasteful number, since it uses less digits than its factorization.

242544044552543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131748696.

The product of its (nonzero) digits is 61440000, while the sum is 53.

Adding to 242544044552543 its reverse (345255440445242), we get a palindrome (587799484997785).

The spelling of 242544044552543 in words is "two hundred forty-two trillion, five hundred forty-four billion, forty-four million, five hundred fifty-two thousand, five hundred forty-three".