505216282 has 4 divisors (see below), whose sum is σ = 757824426. Its totient is φ = 252608140.

The previous prime is 505216277. The next prime is 505216343. The reversal of 505216282 is 282612505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 297597001 + 207619281 = 17251^2 + 14409^2 .

It is a super-3 number, since 3×505216282³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 126304069 + ... + 126304072.

Almost surely, 2^505216282 is an apocalyptic number.

505216282 is a deficient number, since it is larger than the sum of its proper divisors (252608144).

505216282 is a wasteful number, since it uses less digits than its factorization.

505216282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252608143.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 505216282 is about 22477.0167504498. The cubic root of 505216282 is about 796.4510933991.

Adding to 505216282 its reverse (282612505), we get a palindrome (787828787).

The spelling of 505216282 in words is "five hundred five million, two hundred sixteen thousand, two hundred eighty-two".