551717047 has 8 divisors (see below), whose sum is σ = 645197696. Its totient is φ = 461902392.

The previous prime is 551717039. The next prime is 551717057. The reversal of 551717047 is 740717155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551717047 - 2³ = 551717039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551716997 and 551717015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551717017) 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 7 ways as a sum of consecutive naturals, for example, 916173 + ... + 916774.

It is an arithmetic number, because the mean of its divisors is an integer number (80649712).

Almost surely, 2^551717047 is an apocalyptic number.

551717047 is a deficient number, since it is larger than the sum of its proper divisors (93480649).

551717047 is a wasteful number, since it uses less digits than its factorization.

551717047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832997.

The product of its (nonzero) digits is 34300, while the sum is 37.

The square root of 551717047 is about 23488.6578373478. The cubic root of 551717047 is about 820.1729988947.

The spelling of 551717047 in words is "five hundred fifty-one million, seven hundred seventeen thousand, forty-seven".