42505535041 has 4 divisors (see below), whose sum is σ = 42568320852. Its totient is φ = 42442749232.

The previous prime is 42505534993. The next prime is 42505535077. The reversal of 42505535041 is 14053550524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29285134641 + 13220400400 = 171129^2 + 114980^2 .

It is a cyclic number.

It is not a de Polignac number, because 42505535041 - 2⁷ = 42505534913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42505534988 and 42505535006.

It is not an unprimeable number, because it can be changed into a prime (42505545041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31391890 + ... + 31393243.

It is an arithmetic number, because the mean of its divisors is an integer number (10642080213).

Almost surely, 2^42505535041 is an apocalyptic number.

It is an amenable number.

42505535041 is a deficient number, since it is larger than the sum of its proper divisors (62785811).

42505535041 is an equidigital number, since it uses as much as digits as its factorization.

42505535041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62785810.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 42505535041 in words is "forty-two billion, five hundred five million, five hundred thirty-five thousand, forty-one".