56318837 has 2 divisors, whose sum is σ = 56318838. Its totient is φ = 56318836.

The previous prime is 56318813. The next prime is 56318839. The reversal of 56318837 is 73881365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53787556 + 2531281 = 7334^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 56318837 - 2¹⁰ = 56317813 is a prime.

It is a super-2 number, since 2×56318837² = 6343622802065138, which contains 22 as substring.

Together with 56318839, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56318794 and 56318803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56318839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28159418 + 28159419.

It is an arithmetic number, because the mean of its divisors is an integer number (28159419).

Almost surely, 2^56318837 is an apocalyptic number.

It is an amenable number.

56318837 is a deficient number, since it is larger than the sum of its proper divisors (1).

56318837 is an equidigital number, since it uses as much as digits as its factorization.

56318837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 56318837 is about 7504.5877301821. The cubic root of 56318837 is about 383.3109500898.

The spelling of 56318837 in words is "fifty-six million, three hundred eighteen thousand, eight hundred thirty-seven".