55386663543 has 8 divisors (see below), whose sum is σ = 82054316400. Its totient is φ = 36924442344.

The previous prime is 55386663499. The next prime is 55386663559. The reversal of 55386663543 is 34536668355.

It is not a de Polignac number, because 55386663543 - 2⁸ = 55386663287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55386663543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55386663643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025678928 + ... + 1025678981.

It is an arithmetic number, because the mean of its divisors is an integer number (10256789550).

Almost surely, 2^55386663543 is an apocalyptic number.

55386663543 is a deficient number, since it is larger than the sum of its proper divisors (26667652857).

55386663543 is a wasteful number, since it uses less digits than its factorization.

55386663543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051357918 (or 2051357912 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 55386663543 in words is "fifty-five billion, three hundred eighty-six million, six hundred sixty-three thousand, five hundred forty-three".