54985563 has 12 divisors (see below), whose sum is σ = 83604040. Its totient is φ = 34727616.

The previous prime is 54985561. The next prime is 54985577. The reversal of 54985563 is 36558945.

54985563 is a `hidden beast` number, since 5 + 4 + 9 + 85 + 563 = 666.

54985563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54985563 - 2¹ = 54985561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54985561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160606 + ... + 160947.

Almost surely, 2^54985563 is an apocalyptic number.

54985563 is a deficient number, since it is larger than the sum of its proper divisors (28618477).

54985563 is a wasteful number, since it uses less digits than its factorization.

54985563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321578 (or 321575 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 54985563 is about 7415.2250808725. The cubic root of 54985563 is about 380.2619684827.

The spelling of 54985563 in words is "fifty-four million, nine hundred eighty-five thousand, five hundred sixty-three".