45544643 has 4 divisors (see below), whose sum is σ = 45986928. Its totient is φ = 45102360.

The previous prime is 45544621. The next prime is 45544651. The reversal of 45544643 is 34644554.

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 45544643 - 2⁶ = 45544579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45543643) 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, 220988 + ... + 221193.

It is an arithmetic number, because the mean of its divisors is an integer number (11496732).

Almost surely, 2^45544643 is an apocalyptic number.

45544643 is a deficient number, since it is larger than the sum of its proper divisors (442285).

45544643 is a wasteful number, since it uses less digits than its factorization.

45544643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442284.

The product of its digits is 115200, while the sum is 35.

The square root of 45544643 is about 6748.6771296307. The cubic root of 45544643 is about 357.1185701503.

The spelling of 45544643 in words is "forty-five million, five hundred forty-four thousand, six hundred forty-three".