505336164 has 12 divisors (see below), whose sum is σ = 1179117744. Its totient is φ = 168445384.

The previous prime is 505336163. The next prime is 505336189. The reversal of 505336164 is 461633505.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (505336163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21055662 + ... + 21055685.

It is an arithmetic number, because the mean of its divisors is an integer number (98259812).

Almost surely, 2^505336164 is an apocalyptic number.

It is an amenable number.

505336164 is an abundant number, since it is smaller than the sum of its proper divisors (673781580).

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

505336164 is a wasteful number, since it uses less digits than its factorization.

505336164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42111354 (or 42111352 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 505336164 is about 22479.6833607593. The cubic root of 505336164 is about 796.5140846382.

Adding to 505336164 its reverse (461633505), we get a palindrome (966969669).

The spelling of 505336164 in words is "five hundred five million, three hundred thirty-six thousand, one hundred sixty-four".