56018863 has 2 divisors, whose sum is σ = 56018864. Its totient is φ = 56018862.

The previous prime is 56018861. The next prime is 56018867. The reversal of 56018863 is 36881065.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56018863 - 2¹ = 56018861 is a prime.

It is a super-2 number, since 2×56018863² = 6276226023625538, which contains 22 as substring.

Together with 56018861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56018861) 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, 28009431 + 28009432.

It is an arithmetic number, because the mean of its divisors is an integer number (28009432).

Almost surely, 2^56018863 is an apocalyptic number.

56018863 is a deficient number, since it is larger than the sum of its proper divisors (1).

56018863 is an equidigital number, since it uses as much as digits as its factorization.

56018863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 56018863 is about 7484.5750046345. The cubic root of 56018863 is about 382.6291884238.

The spelling of 56018863 in words is "fifty-six million, eighteen thousand, eight hundred sixty-three".