42554534443 has 2 divisors, whose sum is σ = 42554534444. Its totient is φ = 42554534442.

The previous prime is 42554534413. The next prime is 42554534497. The reversal of 42554534443 is 34443545524.

42554534443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42554534443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42554534443.

It is not a weakly prime, because it can be changed into another prime (42554534413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277267221 + 21277267222.

It is an arithmetic number, because the mean of its divisors is an integer number (21277267222).

Almost surely, 2^42554534443 is an apocalyptic number.

42554534443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42554534443 is an equidigital number, since it uses as much as digits as its factorization.

42554534443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 43.

The spelling of 42554534443 in words is "forty-two billion, five hundred fifty-four million, five hundred thirty-four thousand, four hundred forty-three".