75542543 has 8 divisors (see below), whose sum is σ = 81496368. Its totient is φ = 69756544.

The previous prime is 75542531. The next prime is 75542549. The reversal of 75542543 is 34524557.

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

It is a cyclic number.

It is not a de Polignac number, because 75542543 - 2⁸ = 75542287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75542549) 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, 41021 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (10187046).

Almost surely, 2^75542543 is an apocalyptic number.

75542543 is a deficient number, since it is larger than the sum of its proper divisors (5953825).

75542543 is a wasteful number, since it uses less digits than its factorization.

75542543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83913.

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

The square root of 75542543 is about 8691.5213282831. The cubic root of 75542543 is about 422.7307759696.

The spelling of 75542543 in words is "seventy-five million, five hundred forty-two thousand, five hundred forty-three".