55471800543 has 4 divisors (see below), whose sum is σ = 73962400728. Its totient is φ = 36981200360.

The previous prime is 55471800541. The next prime is 55471800577. The reversal of 55471800543 is 34500817455.

It is a happy number.

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 55471800543 - 2¹ = 55471800541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55471800495 and 55471800504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55471800541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9245300088 + ... + 9245300093.

It is an arithmetic number, because the mean of its divisors is an integer number (18490600182).

Almost surely, 2^55471800543 is an apocalyptic number.

55471800543 is a deficient number, since it is larger than the sum of its proper divisors (18490600185).

55471800543 is a wasteful number, since it uses less digits than its factorization.

55471800543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18490600184.

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 55471800543 in words is "fifty-five billion, four hundred seventy-one million, eight hundred thousand, five hundred forty-three".