550613643 has 8 divisors (see below), whose sum is σ = 734267088. Its totient is φ = 367017984.

The previous prime is 550613627. The next prime is 550613683. The reversal of 550613643 is 346316055.

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

It is not a de Polignac number, because 550613643 - 2⁴ = 550613627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550613683) 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, 18571 + ... + 38027.

It is an arithmetic number, because the mean of its divisors is an integer number (91783386).

Almost surely, 2^550613643 is an apocalyptic number.

550613643 is a deficient number, since it is larger than the sum of its proper divisors (183653445).

550613643 is a wasteful number, since it uses less digits than its factorization.

550613643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28893.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 550613643 is about 23465.1580646711. The cubic root of 550613643 is about 819.6258669009.

Adding to 550613643 its reverse (346316055), we get a palindrome (896929698).

The spelling of 550613643 in words is "five hundred fifty million, six hundred thirteen thousand, six hundred forty-three".