550005047 has 4 divisors (see below), whose sum is σ = 551183256. Its totient is φ = 548826840.

The previous prime is 550005019. The next prime is 550005059. The reversal of 550005047 is 740500055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550005047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550004047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588404 + ... + 589337.

It is an arithmetic number, because the mean of its divisors is an integer number (137795814).

Almost surely, 2^550005047 is an apocalyptic number.

550005047 is a deficient number, since it is larger than the sum of its proper divisors (1178209).

550005047 is a wasteful number, since it uses less digits than its factorization.

550005047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178208.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 550005047 is about 23452.1864012718. The cubic root of 550005047 is about 819.3237767230.

The spelling of 550005047 in words is "five hundred fifty million, five thousand, forty-seven".