42559043 has 2 divisors, whose sum is σ = 42559044. Its totient is φ = 42559042.

The previous prime is 42559021. The next prime is 42559067. The reversal of 42559043 is 34095524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42559043 - 2¹² = 42554947 is a prime.

It is a super-2 number, since 2×42559043² = 3622544282151698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42559093) 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 as a sum of consecutive naturals, namely, 21279521 + 21279522.

It is an arithmetic number, because the mean of its divisors is an integer number (21279522).

Almost surely, 2^42559043 is an apocalyptic number.

42559043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42559043 is an equidigital number, since it uses as much as digits as its factorization.

42559043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 42559043 is about 6523.7292249142. The cubic root of 42559043 is about 349.1381324729.

The spelling of 42559043 in words is "forty-two million, five hundred fifty-nine thousand, forty-three".