42580005 has 32 divisors (see below), whose sum is σ = 74632320. Its totient is φ = 20601600.

The previous prime is 42579997. The next prime is 42580039. The reversal of 42580005 is 50008524.

It is not a de Polignac number, because 42580005 - 2³ = 42579997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9655 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (2332260).

Almost surely, 2^42580005 is an apocalyptic number.

It is an amenable number.

42580005 is a deficient number, since it is larger than the sum of its proper divisors (32052315).

42580005 is a wasteful number, since it uses less digits than its factorization.

42580005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 42580005 is about 6525.3356235522. The cubic root of 42580005 is about 349.1954444782.

Adding to 42580005 its reverse (50008524), we get a palindrome (92588529).

The spelling of 42580005 in words is "forty-two million, five hundred eighty thousand, five".