550055194787 has 4 divisors (see below), whose sum is σ = 628634508336. Its totient is φ = 471475881240.

The previous prime is 550055194769. The next prime is 550055194789. The reversal of 550055194787 is 787491550055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550055194787 - 2¹⁶ = 550055129251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550055194789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39289656764 + ... + 39289656777.

It is an arithmetic number, because the mean of its divisors is an integer number (157158627084).

Almost surely, 2^550055194787 is an apocalyptic number.

550055194787 is a deficient number, since it is larger than the sum of its proper divisors (78579313549).

550055194787 is an equidigital number, since it uses as much as digits as its factorization.

550055194787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78579313548.

The product of its (nonzero) digits is 8820000, while the sum is 56.

The spelling of 550055194787 in words is "five hundred fifty billion, fifty-five million, one hundred ninety-four thousand, seven hundred eighty-seven".