550073081 has 4 divisors (see below), whose sum is σ = 550992000. Its totient is φ = 549154164.

The previous prime is 550073057. The next prime is 550073087. The reversal of 550073081 is 180370055.

550073081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550073081 - 2²² = 545878777 is a prime.

It is a super-2 number, since 2×550073081² = 605160788881665122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550073087) 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, 458561 + ... + 459758.

It is an arithmetic number, because the mean of its divisors is an integer number (137748000).

Almost surely, 2^550073081 is an apocalyptic number.

It is an amenable number.

550073081 is a deficient number, since it is larger than the sum of its proper divisors (918919).

550073081 is an equidigital number, since it uses as much as digits as its factorization.

550073081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918918.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 550073081 is about 23453.6368395181. The cubic root of 550073081 is about 819.3575579739.

The spelling of 550073081 in words is "five hundred fifty million, seventy-three thousand, eighty-one".