505216682 has 4 divisors (see below), whose sum is σ = 757825026. Its totient is φ = 252608340.

The previous prime is 505216667. The next prime is 505216687. The reversal of 505216682 is 286612505.

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., 282878761 + 222337921 = 16819^2 + 14911^2 .

It is not an unprimeable number, because it can be changed into a prime (505216687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126304169 + ... + 126304172.

Almost surely, 2^505216682 is an apocalyptic number.

505216682 is a deficient number, since it is larger than the sum of its proper divisors (252608344).

505216682 is a wasteful number, since it uses less digits than its factorization.

505216682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252608343.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 505216682 is about 22477.0256484260. The cubic root of 505216682 is about 796.4513035931.

The spelling of 505216682 in words is "five hundred five million, two hundred sixteen thousand, six hundred eighty-two".