550703509 has 2 divisors, whose sum is σ = 550703510. Its totient is φ = 550703508.

The previous prime is 550703507. The next prime is 550703563. The reversal of 550703509 is 905307055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523402884 + 27300625 = 22878^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 550703509 - 2¹ = 550703507 is a prime.

Together with 550703507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550703507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275351754 + 275351755.

It is an arithmetic number, because the mean of its divisors is an integer number (275351755).

Almost surely, 2^550703509 is an apocalyptic number.

It is an amenable number.

550703509 is a deficient number, since it is larger than the sum of its proper divisors (1).

550703509 is an equidigital number, since it uses as much as digits as its factorization.

550703509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 550703509 is about 23467.0728681700. The cubic root of 550703509 is about 819.6704550268.

The spelling of 550703509 in words is "five hundred fifty million, seven hundred three thousand, five hundred nine".