505411343 has 8 divisors (see below), whose sum is σ = 563307120. Its totient is φ = 450645120.

The previous prime is 505411327. The next prime is 505411349. The reversal of 505411343 is 343114505.

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

It is a cyclic number.

It is not a de Polignac number, because 505411343 - 2⁴ = 505411327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505411349) 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, 782048 + ... + 782693.

It is an arithmetic number, because the mean of its divisors is an integer number (70413390).

Almost surely, 2^505411343 is an apocalyptic number.

505411343 is a deficient number, since it is larger than the sum of its proper divisors (57895777).

505411343 is a wasteful number, since it uses less digits than its factorization.

505411343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564777.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 505411343 is about 22481.3554529081. The cubic root of 505411343 is about 796.5535818860.

Adding to 505411343 its reverse (343114505), we get a palindrome (848525848).

The spelling of 505411343 in words is "five hundred five million, four hundred eleven thousand, three hundred forty-three".