56118313 has 2 divisors, whose sum is σ = 56118314. Its totient is φ = 56118312.

The previous prime is 56118289. The next prime is 56118341. The reversal of 56118313 is 31381165.

It is an a-pointer prime, because the next prime (56118341) can be obtained adding 56118313 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52229529 + 3888784 = 7227^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 56118313 - 2⁵ = 56118281 is a prime.

It is not a weakly prime, because it can be changed into another prime (56118373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28059156 + 28059157.

It is an arithmetic number, because the mean of its divisors is an integer number (28059157).

Almost surely, 2^56118313 is an apocalyptic number.

It is an amenable number.

56118313 is a deficient number, since it is larger than the sum of its proper divisors (1).

56118313 is an equidigital number, since it uses as much as digits as its factorization.

56118313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 56118313 is about 7491.2157224312. The cubic root of 56118313 is about 382.8554811093.

Adding to 56118313 its reverse (31381165), we get a palindrome (87499478).

It can be divided in two parts, 5611 and 8313, that added together give a square (13924 = 118²).

The spelling of 56118313 in words is "fifty-six million, one hundred eighteen thousand, three hundred thirteen".