42571211 has 2 divisors, whose sum is σ = 42571212. Its totient is φ = 42571210.

The previous prime is 42571171. The next prime is 42571241. The reversal of 42571211 is 11217524.

42571211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42571211 - 2²² = 38376907 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42571241) 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 as a sum of consecutive naturals, namely, 21285605 + 21285606.

It is an arithmetic number, because the mean of its divisors is an integer number (21285606).

Almost surely, 2^42571211 is an apocalyptic number.

42571211 is a deficient number, since it is larger than the sum of its proper divisors (1).

42571211 is an equidigital number, since it uses as much as digits as its factorization.

42571211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 23.

The square root of 42571211 is about 6524.6617536850. The cubic root of 42571211 is about 349.1714031770.

Adding to 42571211 its reverse (11217524), we get a palindrome (53788735).

The spelling of 42571211 in words is "forty-two million, five hundred seventy-one thousand, two hundred eleven".