509855103 has 6 divisors (see below), whose sum is σ = 736457384. Its totient is φ = 339903396.

The previous prime is 509855083. The next prime is 509855161. The reversal of 509855103 is 301558905.

It is a happy number.

509855103 is a `hidden beast` number, since 50 + 98 + 5 + 510 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-509855103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509855173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28325275 + ... + 28325292.

Almost surely, 2^509855103 is an apocalyptic number.

509855103 is a deficient number, since it is larger than the sum of its proper divisors (226602281).

509855103 is a wasteful number, since it uses less digits than its factorization.

509855103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56650573 (or 56650570 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 509855103 is about 22579.9712798754. The cubic root of 509855103 is about 798.8813025200.

The spelling of 509855103 in words is "five hundred nine million, eight hundred fifty-five thousand, one hundred three".