42575543 has 2 divisors, whose sum is σ = 42575544. Its totient is φ = 42575542.

The previous prime is 42575539. The next prime is 42575551. The reversal of 42575543 is 34557524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42575543 - 2² = 42575539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42575503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21287771 + 21287772.

It is an arithmetic number, because the mean of its divisors is an integer number (21287772).

Almost surely, 2^42575543 is an apocalyptic number.

42575543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42575543 is an equidigital number, since it uses as much as digits as its factorization.

42575543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 35.

The square root of 42575543 is about 6524.9937164721. The cubic root of 42575543 is about 349.1832465424.

The spelling of 42575543 in words is "forty-two million, five hundred seventy-five thousand, five hundred forty-three".