505840506 has 16 divisors (see below), whose sum is σ = 1025540544. Its totient is φ = 166303584.

The previous prime is 505840501. The next prime is 505840529. The reversal of 505840506 is 605048505.

It is not an unprimeable number, because it can be changed into a prime (505840501) 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, 577006 + ... + 577881.

It is an arithmetic number, because the mean of its divisors is an integer number (64096284).

Almost surely, 2^505840506 is an apocalyptic number.

505840506 is an abundant number, since it is smaller than the sum of its proper divisors (519700038).

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

505840506 is a wasteful number, since it uses less digits than its factorization.

505840506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154965.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 505840506 is about 22490.8982924204. The cubic root of 505840506 is about 796.7789788923.

The spelling of 505840506 in words is "five hundred five million, eight hundred forty thousand, five hundred six".