505678682 has 4 divisors (see below), whose sum is σ = 758518026. Its totient is φ = 252839340.

The previous prime is 505678669. The next prime is 505678699. The reversal of 505678682 is 286876505.

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., 473541121 + 32137561 = 21761^2 + 5669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126419669 + ... + 126419672.

Almost surely, 2^505678682 is an apocalyptic number.

505678682 is a deficient number, since it is larger than the sum of its proper divisors (252839344).

505678682 is a wasteful number, since it uses less digits than its factorization.

505678682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252839343.

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 505678682 is about 22487.3004604821. The cubic root of 505678682 is about 796.6940036798.

It can be divided in two parts, 5056 and 78682, that added together give a palindrome (83738).

The spelling of 505678682 in words is "five hundred five million, six hundred seventy-eight thousand, six hundred eighty-two".