550849491 has 20 divisors (see below), whose sum is σ = 823622800. Its totient is φ = 366898896.

The previous prime is 550849489. The next prime is 550849531. The reversal of 550849491 is 194948055.

550849491 is a `hidden beast` number, since 550 + 8 + 4 + 9 + 4 + 91 = 666.

550849491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550849491 - 2¹ = 550849489 is a prime.

It is a super-3 number, since 3×550849491³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550849441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113370 + ... + 118128.

It is an arithmetic number, because the mean of its divisors is an integer number (41181140).

Almost surely, 2^550849491 is an apocalyptic number.

550849491 is a deficient number, since it is larger than the sum of its proper divisors (272773309).

550849491 is a wasteful number, since it uses less digits than its factorization.

550849491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200 (or 6191 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 550849491 is about 23470.1830201641. The cubic root of 550849491 is about 819.7428754605.

The spelling of 550849491 in words is "five hundred fifty million, eight hundred forty-nine thousand, four hundred ninety-one".