55541540143 has 4 divisors (see below), whose sum is σ = 55577305728. Its totient is φ = 55505774560.

The previous prime is 55541540129. The next prime is 55541540177. The reversal of 55541540143 is 34104514555.

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 55541540143 - 2²¹ = 55539442991 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 (55541540113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17880463 + ... + 17883568.

It is an arithmetic number, because the mean of its divisors is an integer number (13894326432).

Almost surely, 2^55541540143 is an apocalyptic number.

55541540143 is a deficient number, since it is larger than the sum of its proper divisors (35765585).

55541540143 is a wasteful number, since it uses less digits than its factorization.

55541540143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35765584.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 55541540143 in words is "fifty-five billion, five hundred forty-one million, five hundred forty thousand, one hundred forty-three".