5663539 has 16 divisors (see below), whose sum is σ = 6899200. Its totient is φ = 4541184.

The previous prime is 5663521. The next prime is 5663549. The reversal of 5663539 is 9353665.

It is a cyclic number.

It is not a de Polignac number, because 5663539 - 2⁹ = 5663027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5663498 and 5663507.

It is not an unprimeable number, because it can be changed into a prime (5663519) 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 15 ways as a sum of consecutive naturals, for example, 12682 + ... + 13120.

It is an arithmetic number, because the mean of its divisors is an integer number (431200).

Almost surely, 2^5663539 is an apocalyptic number.

5663539 is a deficient number, since it is larger than the sum of its proper divisors (1235661).

5663539 is a wasteful number, since it uses less digits than its factorization.

5663539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its digits is 72900, while the sum is 37.

The square root of 5663539 is about 2379.8191107729. The cubic root of 5663539 is about 178.2499014823.

The spelling of 5663539 in words is "five million, six hundred sixty-three thousand, five hundred thirty-nine".