53556563 has 8 divisors (see below), whose sum is σ = 54239520. Its totient is φ = 52876800.

The previous prime is 53556557. The next prime is 53556577. The reversal of 53556563 is 36565535.

It is a happy number.

53556563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53556563 - 2¹² = 53552467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53556583) 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 7 ways as a sum of consecutive naturals, for example, 57818 + ... + 58736.

It is an arithmetic number, because the mean of its divisors is an integer number (6779940).

Almost surely, 2^53556563 is an apocalyptic number.

53556563 is a deficient number, since it is larger than the sum of its proper divisors (682957).

53556563 is a wasteful number, since it uses less digits than its factorization.

53556563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597.

The product of its digits is 202500, while the sum is 38.

The square root of 53556563 is about 7318.2349647985. The cubic root of 53556563 is about 376.9388484425.

The spelling of 53556563 in words is "fifty-three million, five hundred fifty-six thousand, five hundred sixty-three".