56217323418 has 8 divisors (see below), whose sum is σ = 112434646848. Its totient is φ = 18739107804.

The previous prime is 56217323411. The next prime is 56217323447. The reversal of 56217323418 is 81432371265.

It is a sphenic number, since it is the product of 3 distinct primes.

56217323418 is an admirable number.

It is a super-2 number, since 2×56217323418² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56217323418.

It is not an unprimeable number, because it can be changed into a prime (56217323411) 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 in 3 ways as a sum of consecutive naturals, for example, 4684776946 + ... + 4684776957.

It is an arithmetic number, because the mean of its divisors is an integer number (14054330856).

Almost surely, 2^56217323418 is an apocalyptic number.

56217323418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56217323418 is a wasteful number, since it uses less digits than its factorization.

56217323418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369553908.

The product of its digits is 241920, while the sum is 42.

The spelling of 56217323418 in words is "fifty-six billion, two hundred seventeen million, three hundred twenty-three thousand, four hundred eighteen".