505606506 has 16 divisors (see below), whose sum is σ = 1035877248. Its totient is φ = 164424800.

The previous prime is 505606501. The next prime is 505606567. The reversal of 505606506 is 605606505.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505606501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027410 + ... + 1027901.

It is an arithmetic number, because the mean of its divisors is an integer number (64742328).

Almost surely, 2^505606506 is an apocalyptic number.

505606506 is an abundant number, since it is smaller than the sum of its proper divisors (530270742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505606506 is a wasteful number, since it uses less digits than its factorization.

505606506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055357.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 505606506 is about 22485.6955863055. The cubic root of 505606506 is about 796.6560975783.

Subtracting 505606506 from its reverse (605606505), we obtain a palindrome (99999999).

The spelling of 505606506 in words is "five hundred five million, six hundred six thousand, five hundred six".