42516422005 has 4 divisors (see below), whose sum is σ = 51019706412. Its totient is φ = 34013137600.

The previous prime is 42516421963. The next prime is 42516422071. The reversal of 42516422005 is 50022461524.

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 16910661681 + 25605760324 = 130041^2 + 160018^2 .

It is not a de Polignac number, because 42516422005 - 2¹⁹ = 42515897717 is a prime.

It is a super-2 number, since 2×42516422005² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4251642196 + ... + 4251642205.

It is an arithmetic number, because the mean of its divisors is an integer number (12754926603).

Almost surely, 2^42516422005 is an apocalyptic number.

It is an amenable number.

42516422005 is a deficient number, since it is larger than the sum of its proper divisors (8503284407).

42516422005 is an equidigital number, since it uses as much as digits as its factorization.

42516422005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503284406.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42516422005 its reverse (50022461524), we get a palindrome (92538883529).

The spelling of 42516422005 in words is "forty-two billion, five hundred sixteen million, four hundred twenty-two thousand, five".