53606663543 has 4 divisors (see below), whose sum is σ = 54485461368. Its totient is φ = 52727865720.

The previous prime is 53606663527. The next prime is 53606663549. The reversal of 53606663543 is 34536660635.

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

It is a cyclic number.

It is not a de Polignac number, because 53606663543 - 2⁴ = 53606663527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53606663549) 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, 439398821 + ... + 439398942.

It is an arithmetic number, because the mean of its divisors is an integer number (13621365342).

Almost surely, 2^53606663543 is an apocalyptic number.

53606663543 is a deficient number, since it is larger than the sum of its proper divisors (878797825).

53606663543 is an equidigital number, since it uses as much as digits as its factorization.

53606663543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878797824.

The product of its (nonzero) digits is 3499200, while the sum is 47.

The spelling of 53606663543 in words is "fifty-three billion, six hundred six million, six hundred sixty-three thousand, five hundred forty-three".