505050609 has 32 divisors (see below), whose sum is σ = 828974080. Its totient is φ = 267043392.

The previous prime is 505050607. The next prime is 505050613. The reversal of 505050609 is 906050505.

It is a happy number.

It is not a de Polignac number, because 505050609 - 2¹ = 505050607 is a prime.

It is a super-2 number, since 2×505050609² = 510152235302541762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505050607) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2439 + ... + 31875.

It is an arithmetic number, because the mean of its divisors is an integer number (25905440).

Almost surely, 2^505050609 is an apocalyptic number.

It is an amenable number.

505050609 is a deficient number, since it is larger than the sum of its proper divisors (323923471).

505050609 is a wasteful number, since it uses less digits than its factorization.

505050609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29509.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 505050609 is about 22473.3310615049. The cubic root of 505050609 is about 796.3640251654.

The spelling of 505050609 in words is "five hundred five million, fifty thousand, six hundred nine".