505366361 has 8 divisors (see below), whose sum is σ = 535426920. Its totient is φ = 475342848.

The previous prime is 505366343. The next prime is 505366363. The reversal of 505366361 is 163663505.

It can be written as a sum of positive squares in 4 ways, for example, as 171610000 + 333756361 = 13100^2 + 18269^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-505366361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505366363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21845 + ... + 38573.

It is an arithmetic number, because the mean of its divisors is an integer number (66928365).

Almost surely, 2^505366361 is an apocalyptic number.

It is an amenable number.

505366361 is a deficient number, since it is larger than the sum of its proper divisors (30060559).

505366361 is a wasteful number, since it uses less digits than its factorization.

505366361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 505366361 is about 22480.3550016453. The cubic root of 505366361 is about 796.5299498902.

The spelling of 505366361 in words is "five hundred five million, three hundred sixty-six thousand, three hundred sixty-one".