550109803 has 2 divisors, whose sum is σ = 550109804. Its totient is φ = 550109802.

The previous prime is 550109797. The next prime is 550109839. The reversal of 550109803 is 308901055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550109803 is a prime.

It is not a weakly prime, because it can be changed into another prime (550109863) 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 as a sum of consecutive naturals, namely, 275054901 + 275054902.

It is an arithmetic number, because the mean of its divisors is an integer number (275054902).

Almost surely, 2^550109803 is an apocalyptic number.

550109803 is a deficient number, since it is larger than the sum of its proper divisors (1).

550109803 is an equidigital number, since it uses as much as digits as its factorization.

550109803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 550109803 is about 23454.4196901138. The cubic root of 550109803 is about 819.3757905687.

The spelling of 550109803 in words is "five hundred fifty million, one hundred nine thousand, eight hundred three".