505382 has 4 divisors (see below), whose sum is σ = 758076. Its totient is φ = 252690.

The previous prime is 505369. The next prime is 505399. The reversal of 505382 is 283505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283505 = 5 ⋅56701.

It is a congruent number.

It is an unprimeable number.

505382 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126344 + ... + 126347.

It is an arithmetic number, because the mean of its divisors is an integer number (189519).

2⁵⁰⁵³⁸² is an apocalyptic number.

505382 is a deficient number, since it is larger than the sum of its proper divisors (252694).

505382 is a wasteful number, since it uses less digits than its factorization.

505382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252693.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 505382 is about 710.9022436313. The cubic root of 505382 is about 79.6538166242.

Adding to 505382 its reverse (283505), we get a palindrome (788887).

The spelling of 505382 in words is "five hundred five thousand, three hundred eighty-two".