505421683 has 8 divisors (see below), whose sum is σ = 545605200. Its totient is φ = 465424608.

The previous prime is 505421681. The next prime is 505421687. The reversal of 505421683 is 386124505.

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 505421683 - 2¹ = 505421681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505421681) 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, 40948 + ... + 51841.

It is an arithmetic number, because the mean of its divisors is an integer number (68200650).

Almost surely, 2^505421683 is an apocalyptic number.

505421683 is a deficient number, since it is larger than the sum of its proper divisors (40183517).

505421683 is a wasteful number, since it uses less digits than its factorization.

505421683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93221.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 505421683 is about 22481.5854200721. The cubic root of 505421683 is about 796.5590139682.

It can be divided in two parts, 505421 and 683, that multiplied together give a palindrome (345202543).

The spelling of 505421683 in words is "five hundred five million, four hundred twenty-one thousand, six hundred eighty-three".