55013550143 has 4 divisors (see below), whose sum is σ = 55014371568. Its totient is φ = 55012728720.

The previous prime is 55013550113. The next prime is 55013550157. The reversal of 55013550143 is 34105531055.

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 55013550143 - 2⁶ = 55013550079 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 (55013550113) 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, 300371 + ... + 447492.

It is an arithmetic number, because the mean of its divisors is an integer number (13753592892).

Almost surely, 2^55013550143 is an apocalyptic number.

55013550143 is a deficient number, since it is larger than the sum of its proper divisors (821425).

55013550143 is an equidigital number, since it uses as much as digits as its factorization.

55013550143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821424.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 55013550143 in words is "fifty-five billion, thirteen million, five hundred fifty thousand, one hundred forty-three".