550411158609 has 135 divisors (see below), whose sum is σ = 948327583203. Its totient is φ = 317935507968.

The previous prime is 550411158559. The next prime is 550411158611. The reversal of 550411158609 is 906851114055.

The square root of 550411158609 is 741897.

It is a perfect power (a square), and thus also a powerful number.

550411158609 is a `hidden beast` number, since 5 + 50 + 4 + 1 + 11 + 586 + 0 + 9 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 303529374225 + 246881784384 = 550935^2 + 496872^2 .

It is not a de Polignac number, because 550411158609 - 2¹³ = 550411150417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550411154609) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1475632947 + ... + 1475633319.

Almost surely, 2^550411158609 is an apocalyptic number.

550411158609 is the 741897-th square number.

550411158609 is the 370949-th centered octagonal number.

It is an amenable number.

550411158609 is a deficient number, since it is larger than the sum of its proper divisors (397916424594).

550411158609 is an equidigital number, since it uses as much as digits as its factorization.

550411158609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 550411158609 in words is "five hundred fifty billion, four hundred eleven million, one hundred fifty-eight thousand, six hundred nine".