56988518423 has 2 divisors, whose sum is σ = 56988518424. Its totient is φ = 56988518422.

The previous prime is 56988518351. The next prime is 56988518449. The reversal of 56988518423 is 32481588965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56988518423 - 2¹² = 56988514327 is a prime.

It is a super-3 number, since 3×56988518423³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56988518453) 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, 28494259211 + 28494259212.

It is an arithmetic number, because the mean of its divisors is an integer number (28494259212).

Almost surely, 2^56988518423 is an apocalyptic number.

56988518423 is a deficient number, since it is larger than the sum of its proper divisors (1).

56988518423 is an equidigital number, since it uses as much as digits as its factorization.

56988518423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 59.

The spelling of 56988518423 in words is "fifty-six billion, nine hundred eighty-eight million, five hundred eighteen thousand, four hundred twenty-three".