5563945 has 4 divisors (see below), whose sum is σ = 6676740. Its totient is φ = 4451152.

The previous prime is 5563933. The next prime is 5563951. The reversal of 5563945 is 5493655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5493655 = 5 ⋅1098731.

It can be written as a sum of positive squares in 2 ways, for example, as 1607824 + 3956121 = 1268^2 + 1989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5563945 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556390 + ... + 556399.

It is an arithmetic number, because the mean of its divisors is an integer number (1669185).

Almost surely, 2^5563945 is an apocalyptic number.

It is an amenable number.

5563945 is a deficient number, since it is larger than the sum of its proper divisors (1112795).

5563945 is a wasteful number, since it uses less digits than its factorization.

5563945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112794.

The product of its digits is 81000, while the sum is 37.

The square root of 5563945 is about 2358.8016025092. The cubic root of 5563945 is about 177.1988678426.

It can be divided in two parts, 55 and 63945, that added together give a cube (64000 = 40³).

The spelling of 5563945 in words is "five million, five hundred sixty-three thousand, nine hundred forty-five".