42590543 has 2 divisors, whose sum is σ = 42590544. Its totient is φ = 42590542.

The previous prime is 42590479. The next prime is 42590563. The reversal of 42590543 is 34509524.

It is a happy number.

42590543 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 42590543 - 2⁶ = 42590479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42590563) 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, 21295271 + 21295272.

It is an arithmetic number, because the mean of its divisors is an integer number (21295272).

Almost surely, 2^42590543 is an apocalyptic number.

42590543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42590543 is an equidigital number, since it uses as much as digits as its factorization.

42590543 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 42590543 is about 6526.1430416441. The cubic root of 42590543 is about 349.2242492193.

The spelling of 42590543 in words is "forty-two million, five hundred ninety thousand, five hundred forty-three".