551254009 has 8 divisors (see below), whose sum is σ = 568096200. Its totient is φ = 534514176.

The previous prime is 551254003. The next prime is 551254027. The reversal of 551254009 is 900452155.

It can be written as a sum of positive squares in 4 ways, for example, as 381342784 + 169911225 = 19528^2 + 13035^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 551254009 - 2⁵ = 551253977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551254003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14584 + ... + 36265.

It is an arithmetic number, because the mean of its divisors is an integer number (71012025).

Almost surely, 2^551254009 is an apocalyptic number.

It is an amenable number.

551254009 is a deficient number, since it is larger than the sum of its proper divisors (16842191).

551254009 is a wasteful number, since it uses less digits than its factorization.

551254009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51179.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 551254009 is about 23478.7991387975. The cubic root of 551254009 is about 819.9434865871.

The spelling of 551254009 in words is "five hundred fifty-one million, two hundred fifty-four thousand, nine".