545663983 has 16 divisors (see below), whose sum is σ = 603025920. Its totient is φ = 491442336.

The previous prime is 545663969. The next prime is 545664001. The reversal of 545663983 is 389366545.

It is a happy number.

545663983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545663983 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 (545661983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69241 + ... + 76717.

It is an arithmetic number, because the mean of its divisors is an integer number (37689120).

Almost surely, 2^545663983 is an apocalyptic number.

545663983 is a deficient number, since it is larger than the sum of its proper divisors (57361937).

545663983 is a wasteful number, since it uses less digits than its factorization.

545663983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686.

The product of its digits is 2332800, while the sum is 49.

The square root of 545663983 is about 23359.4516844895. The cubic root of 545663983 is about 817.1625021897.

The spelling of 545663983 in words is "five hundred forty-five million, six hundred sixty-three thousand, nine hundred eighty-three".