42571001 has 16 divisors (see below), whose sum is σ = 49109760. Its totient is φ = 36496080.

The previous prime is 42570991. The next prime is 42571003. The reversal of 42571001 is 10017524.

42571001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42571001 - 2⁶ = 42570937 is a prime.

It is a super-2 number, since 2×42571001² = 3624580252284002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42571003) 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 15 ways as a sum of consecutive naturals, for example, 72230 + ... + 72816.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2^42571001 is an apocalyptic number.

It is an amenable number.

42571001 is a deficient number, since it is larger than the sum of its proper divisors (6538759).

42571001 is a wasteful number, since it uses less digits than its factorization.

42571001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 42571001 is about 6524.6456608769. The cubic root of 42571001 is about 349.1708290323.

Adding to 42571001 its reverse (10017524), we get a palindrome (52588525).

The spelling of 42571001 in words is "forty-two million, five hundred seventy-one thousand, one".