55000550043 has 16 divisors (see below), whose sum is σ = 83215964160. Its totient is φ = 35886882888.

The previous prime is 55000550009. The next prime is 55000550051. The reversal of 55000550043 is 34005500055.

It is not a de Polignac number, because 55000550043 - 2⁸ = 55000549787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55000549989 and 55000550016.

It is not an unprimeable number, because it can be changed into a prime (55000550093) 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 15 ways as a sum of consecutive naturals, for example, 21669555 + ... + 21672092.

It is an arithmetic number, because the mean of its divisors is an integer number (5200997760).

Almost surely, 2^55000550043 is an apocalyptic number.

55000550043 is a deficient number, since it is larger than the sum of its proper divisors (28215414117).

55000550043 is a wasteful number, since it uses less digits than its factorization.

55000550043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43341703 (or 43341697 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The spelling of 55000550043 in words is "fifty-five billion, five hundred fifty thousand, forty-three".