85545543 has 8 divisors (see below), whose sum is σ = 120064000. Its totient is φ = 54028728.

The previous prime is 85545511. The next prime is 85545553. The reversal of 85545543 is 34554558.

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

It is not a de Polignac number, because 85545543 - 2⁵ = 85545511 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 (85545503) 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, 750343 + ... + 750456.

It is an arithmetic number, because the mean of its divisors is an integer number (15008000).

Almost surely, 2^85545543 is an apocalyptic number.

85545543 is a deficient number, since it is larger than the sum of its proper divisors (34518457).

85545543 is a wasteful number, since it uses less digits than its factorization.

85545543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500821.

The product of its digits is 240000, while the sum is 39.

The square root of 85545543 is about 9249.0833599876. The cubic root of 85545543 is about 440.6216127902.

The spelling of 85545543 in words is "eighty-five million, five hundred forty-five thousand, five hundred forty-three".