550191005 has 32 divisors (see below), whose sum is σ = 815560704. Its totient is φ = 346980096.

The previous prime is 550191001. The next prime is 550191029. The reversal of 550191005 is 500191055.

It is a cyclic number.

It is not a de Polignac number, because 550191005 - 2² = 550191001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550191001) 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 31 ways as a sum of consecutive naturals, for example, 131252 + ... + 135378.

It is an arithmetic number, because the mean of its divisors is an integer number (25486272).

Almost surely, 2^550191005 is an apocalyptic number.

It is an amenable number.

550191005 is a deficient number, since it is larger than the sum of its proper divisors (265369699).

550191005 is a wasteful number, since it uses less digits than its factorization.

550191005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 550191005 is about 23456.1506859075. The cubic root of 550191005 is about 819.4161047503.

The spelling of 550191005 in words is "five hundred fifty million, one hundred ninety-one thousand, five".