45565543 has 4 divisors (see below), whose sum is σ = 45712368. Its totient is φ = 45418720.

The previous prime is 45565529. The next prime is 45565571. The reversal of 45565543 is 34556554.

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 45565543 - 2⁵ = 45565511 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 (45565573) 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, 72946 + ... + 73567.

It is an arithmetic number, because the mean of its divisors is an integer number (11428092).

Almost surely, 2^45565543 is an apocalyptic number.

45565543 is a deficient number, since it is larger than the sum of its proper divisors (146825).

45565543 is a wasteful number, since it uses less digits than its factorization.

45565543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146824.

The product of its digits is 180000, while the sum is 37.

The square root of 45565543 is about 6750.2254036439. The cubic root of 45565543 is about 357.1731878926.

The spelling of 45565543 in words is "forty-five million, five hundred sixty-five thousand, five hundred forty-three".