55563 has 4 divisors (see below), whose sum is σ = 74088. Its totient is φ = 37040.

The previous prime is 55547. The next prime is 55579. The reversal of 55563 is 36555.

55563 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55547) and next prime (55579).

It is a cyclic number.

It is not a de Polignac number, because 55563 - 2⁴ = 55547 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55563.

It is not an unprimeable number, because it can be changed into a prime (55163) 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, 9258 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (18522).

2⁵⁵⁵⁶³ is an apocalyptic number.

55563 is a deficient number, since it is larger than the sum of its proper divisors (18525).

55563 is a wasteful number, since it uses less digits than its factorization.

55563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18524.

The product of its digits is 2250, while the sum is 24.

The square root of 55563 is about 235.7180519180. The cubic root of 55563 is about 38.1588456946.

The spelling of 55563 in words is "fifty-five thousand, five hundred sixty-three".