550509651 has 6 divisors (see below), whose sum is σ = 795180620. Its totient is φ = 367006428.

The previous prime is 550509613. The next prime is 550509727. The reversal of 550509651 is 156905055.

550509651 is a `hidden beast` number, since 550 + 50 + 9 + 6 + 51 = 666.

It is not a de Polignac number, because 550509651 - 2⁹ = 550509139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550509451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30583861 + ... + 30583878.

Almost surely, 2^550509651 is an apocalyptic number.

550509651 is a deficient number, since it is larger than the sum of its proper divisors (244670969).

550509651 is a wasteful number, since it uses less digits than its factorization.

550509651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61167745 (or 61167742 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 550509651 is about 23462.9420789465. The cubic root of 550509651 is about 819.5742639298.

The spelling of 550509651 in words is "five hundred fifty million, five hundred nine thousand, six hundred fifty-one".