509505050 has 12 divisors (see below), whose sum is σ = 947679486. Its totient is φ = 203802000.

The previous prime is 509505047. The next prime is 509505071. The reversal of 509505050 is 50505905.

It can be written as a sum of positive squares in 3 ways, for example, as 274465489 + 235039561 = 16567^2 + 15331^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5095001 + ... + 5095100.

Almost surely, 2^509505050 is an apocalyptic number.

509505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

509505050 is a deficient number, since it is larger than the sum of its proper divisors (438174436).

509505050 is a wasteful number, since it uses less digits than its factorization.

509505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10190113 (or 10190108 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 29.

The square root of 509505050 is about 22572.2185440421. The cubic root of 509505050 is about 798.6984304192.

The spelling of 509505050 in words is "five hundred nine million, five hundred five thousand, fifty".