68535543 has 8 divisors (see below), whose sum is σ = 91814656. Its totient is φ = 45473400.

The previous prime is 68535499. The next prime is 68535547. The reversal of 68535543 is 34553586.

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

It is not a de Polignac number, because 68535543 - 2⁸ = 68535287 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 (68535547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53503 + ... + 54768.

It is an arithmetic number, because the mean of its divisors is an integer number (11476832).

Almost surely, 2^68535543 is an apocalyptic number.

68535543 is a deficient number, since it is larger than the sum of its proper divisors (23279113).

68535543 is a wasteful number, since it uses less digits than its factorization.

68535543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108485.

The product of its digits is 216000, while the sum is 39.

The square root of 68535543 is about 8278.6196313154. The cubic root of 68535543 is about 409.2342299672.

The spelling of 68535543 in words is "sixty-eight million, five hundred thirty-five thousand, five hundred forty-three".