2568320306 has 4 divisors (see below), whose sum is σ = 3852480462. Its totient is φ = 1284160152.

The previous prime is 2568320303. The next prime is 2568320309. The reversal of 2568320306 is 6030238652.

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

It is an interprime number because it is at equal distance from previous prime (2568320303) and next prime (2568320309).

It can be written as a sum of positive squares in only one way, i.e., 2066157025 + 502163281 = 45455^2 + 22409^2 .

It is not an unprimeable number, because it can be changed into a prime (2568320303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642080075 + ... + 642080078.

Almost surely, 2^2568320306 is an apocalyptic number.

2568320306 is a deficient number, since it is larger than the sum of its proper divisors (1284160156).

2568320306 is a wasteful number, since it uses less digits than its factorization.

2568320306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284160155.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2568320306 is about 50678.5981061039. The cubic root of 2568320306 is about 1369.4611882979.

Adding to 2568320306 its reverse (6030238652), we get a palindrome (8598558958).

The spelling of 2568320306 in words is "two billion, five hundred sixty-eight million, three hundred twenty thousand, three hundred six".