518313002 has 4 divisors (see below), whose sum is σ = 777469506. Its totient is φ = 259156500.

The previous prime is 518312953. The next prime is 518313007. The reversal of 518313002 is 200313815.

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., 356794321 + 161518681 = 18889^2 + 12709^2 .

It is not an unprimeable number, because it can be changed into a prime (518313007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129578249 + ... + 129578252.

Almost surely, 2^518313002 is an apocalyptic number.

518313002 is a deficient number, since it is larger than the sum of its proper divisors (259156504).

518313002 is a wasteful number, since it uses less digits than its factorization.

518313002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259156503.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 518313002 is about 22766.4885742180. The cubic root of 518313002 is about 803.2745998316.

Adding to 518313002 its reverse (200313815), we get a palindrome (718626817).

The spelling of 518313002 in words is "five hundred eighteen million, three hundred thirteen thousand, two".