550446001729 has 4 divisors (see below), whose sum is σ = 592788001876. Its totient is φ = 508104001584.

The previous prime is 550446001727. The next prime is 550446001739. The reversal of 550446001729 is 927100644055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 285994996225 + 264451005504 = 534785^2 + 514248^2 .

It is a cyclic number.

It is not a de Polignac number, because 550446001729 - 2¹ = 550446001727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550446001727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21171000054 + ... + 21171000079.

It is an arithmetic number, because the mean of its divisors is an integer number (148197000469).

Almost surely, 2^550446001729 is an apocalyptic number.

It is an amenable number.

550446001729 is a deficient number, since it is larger than the sum of its proper divisors (42342000147).

550446001729 is a wasteful number, since it uses less digits than its factorization.

550446001729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42342000146.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 550446001729 in words is "five hundred fifty billion, four hundred forty-six million, one thousand, seven hundred twenty-nine".