42566541 has 8 divisors (see below), whose sum is σ = 56885280. Its totient is φ = 28312752.

The previous prime is 42566527. The next prime is 42566567. The reversal of 42566541 is 14566524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42566541 - 2⁵ = 42566509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42566581) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14686 + ... + 17343.

It is an arithmetic number, because the mean of its divisors is an integer number (7110660).

Almost surely, 2^42566541 is an apocalyptic number.

It is an amenable number.

42566541 is a deficient number, since it is larger than the sum of its proper divisors (14318739).

42566541 is a wasteful number, since it uses less digits than its factorization.

42566541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32475.

The product of its digits is 28800, while the sum is 33.

The square root of 42566541 is about 6524.3038709122. The cubic root of 42566541 is about 349.1586348449.

It can be divided in two parts, 425 and 66541, that added together give a palindrome (66966).

The spelling of 42566541 in words is "forty-two million, five hundred sixty-six thousand, five hundred forty-one".