42534543 has 8 divisors (see below), whose sum is σ = 56898688. Its totient is φ = 28263384.

The previous prime is 42534529. The next prime is 42534553. The reversal of 42534543 is 34543524.

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

It is not a de Polignac number, because 42534543 - 2⁸ = 42534287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42534543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42534553) 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, 22171 + ... + 24012.

It is an arithmetic number, because the mean of its divisors is an integer number (7112336).

Almost surely, 2^42534543 is an apocalyptic number.

42534543 is a deficient number, since it is larger than the sum of its proper divisors (14364145).

42534543 is a wasteful number, since it uses less digits than its factorization.

42534543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46493.

The product of its digits is 28800, while the sum is 30.

The square root of 42534543 is about 6521.8511942546. The cubic root of 42534543 is about 349.0711233990.

The spelling of 42534543 in words is "forty-two million, five hundred thirty-four thousand, five hundred forty-three".