550053643 has 16 divisors (see below), whose sum is σ = 583303680. Its totient is φ = 517842976.

The previous prime is 550053619. The next prime is 550053689. The reversal of 550053643 is 346350055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550053643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550053943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472380 + ... + 473542.

It is an arithmetic number, because the mean of its divisors is an integer number (36456480).

Almost surely, 2^550053643 is an apocalyptic number.

550053643 is a deficient number, since it is larger than the sum of its proper divisors (33250037).

550053643 is a wasteful number, since it uses less digits than its factorization.

550053643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 550053643 is about 23453.2224438349. Note that the first 3 decimals coincide. The cubic root of 550053643 is about 819.3479066140.

The spelling of 550053643 in words is "five hundred fifty million, fifty-three thousand, six hundred forty-three".