53565543 has 20 divisors (see below), whose sum is σ = 80765080. Its totient is φ = 35376912.

The previous prime is 53565539. The next prime is 53565583. The reversal of 53565543 is 34556535.

53565543 is a `hidden beast` number, since 53 + 5 + 65 + 543 = 666.

53565543 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 53565543 - 2² = 53565539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53565498 and 53565507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53565583) 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 19 ways as a sum of consecutive naturals, for example, 5796 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (4038254).

Almost surely, 2^53565543 is an apocalyptic number.

53565543 is a deficient number, since it is larger than the sum of its proper divisors (27199537).

53565543 is a wasteful number, since it uses less digits than its factorization.

53565543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188 (or 6179 counting only the distinct ones).

The product of its digits is 135000, while the sum is 36.

The square root of 53565543 is about 7318.8484749993. The cubic root of 53565543 is about 376.9599147787.

The spelling of 53565543 in words is "fifty-three million, five hundred sixty-five thousand, five hundred forty-three".