505106506 has 8 divisors (see below), whose sum is σ = 766173060. Its totient is φ = 249715488.

The previous prime is 505106479. The next prime is 505106513. The reversal of 505106506 is 605601505.

It can be written as a sum of positive squares in 2 ways, for example, as 488631025 + 16475481 = 22105^2 + 4059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418661 + ... + 1419016.

Almost surely, 2^505106506 is an apocalyptic number.

505106506 is a deficient number, since it is larger than the sum of its proper divisors (261066554).

505106506 is a wasteful number, since it uses less digits than its factorization.

505106506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837768.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 505106506 is about 22474.5746567093. The cubic root of 505106506 is about 796.3934035531.

The spelling of 505106506 in words is "five hundred five million, one hundred six thousand, five hundred six".