42534442001 has 4 divisors (see below), whose sum is σ = 42685810404. Its totient is φ = 42383073600.

The previous prime is 42534441959. The next prime is 42534442003. The reversal of 42534442001 is 10024443524.

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 12674256400 + 29860185601 = 112580^2 + 172801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42534442001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42534442003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75683780 + ... + 75684341.

It is an arithmetic number, because the mean of its divisors is an integer number (10671452601).

Almost surely, 2^42534442001 is an apocalyptic number.

It is an amenable number.

42534442001 is a deficient number, since it is larger than the sum of its proper divisors (151368403).

42534442001 is a wasteful number, since it uses less digits than its factorization.

42534442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151368402.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 42534442001 its reverse (10024443524), we get a palindrome (52558885525).

The spelling of 42534442001 in words is "forty-two billion, five hundred thirty-four million, four hundred forty-two thousand, one".