42554040043 has 2 divisors, whose sum is σ = 42554040044. Its totient is φ = 42554040042.

The previous prime is 42554040041. The next prime is 42554040071. The reversal of 42554040043 is 34004045524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42554040043 - 2¹ = 42554040041 is a prime.

Together with 42554040041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42554039987 and 42554040014.

It is not a weakly prime, because it can be changed into another prime (42554040041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277020021 + 21277020022.

It is an arithmetic number, because the mean of its divisors is an integer number (21277020022).

Almost surely, 2^42554040043 is an apocalyptic number.

42554040043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42554040043 is an equidigital number, since it uses as much as digits as its factorization.

42554040043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 42554040043 its reverse (34004045524), we get a palindrome (76558085567).

The spelling of 42554040043 in words is "forty-two billion, five hundred fifty-four million, forty thousand, forty-three".