505223166 has 16 divisors (see below), whose sum is σ = 1154795904. Its totient is φ = 144349464.

The previous prime is 505223141. The next prime is 505223171. The reversal of 505223166 is 661322505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6014520 + ... + 6014603.

It is an arithmetic number, because the mean of its divisors is an integer number (72174744).

Almost surely, 2^505223166 is an apocalyptic number.

505223166 is an abundant number, since it is smaller than the sum of its proper divisors (649572738).

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

505223166 is a wasteful number, since it uses less digits than its factorization.

505223166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12029135.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 505223166 is about 22477.1698841291. The cubic root of 505223166 is about 796.4547108230.

The spelling of 505223166 in words is "five hundred five million, two hundred twenty-three thousand, one hundred sixty-six".