42535543 has 4 divisors (see below), whose sum is σ = 42770728. Its totient is φ = 42300360.

The previous prime is 42535541. The next prime is 42535583. The reversal of 42535543 is 34553524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42535543 - 2¹ = 42535541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42535541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117321 + ... + 117682.

It is an arithmetic number, because the mean of its divisors is an integer number (10692682).

Almost surely, 2^42535543 is an apocalyptic number.

42535543 is a deficient number, since it is larger than the sum of its proper divisors (235185).

42535543 is a wasteful number, since it uses less digits than its factorization.

42535543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235184.

The product of its digits is 36000, while the sum is 31.

The square root of 42535543 is about 6521.9278591533. The cubic root of 42535543 is about 349.0738589668.

The spelling of 42535543 in words is "forty-two million, five hundred thirty-five thousand, five hundred forty-three".