56556536851 has 8 divisors (see below), whose sum is σ = 56685459600. Its totient is φ = 56427684960.

The previous prime is 56556536833. The next prime is 56556536983. The reversal of 56556536851 is 15863565565.

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

It is a cyclic number.

It is not a de Polignac number, because 56556536851 - 2⁷ = 56556536723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56556536792 and 56556536801.

It is not an unprimeable number, because it can be changed into a prime (56556536821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786680 + ... + 1818058.

It is an arithmetic number, because the mean of its divisors is an integer number (7085682450).

Almost surely, 2^56556536851 is an apocalyptic number.

56556536851 is a deficient number, since it is larger than the sum of its proper divisors (128922749).

56556536851 is a wasteful number, since it uses less digits than its factorization.

56556536851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35429.

The product of its digits is 16200000, while the sum is 55.

The spelling of 56556536851 in words is "fifty-six billion, five hundred fifty-six million, five hundred thirty-six thousand, eight hundred fifty-one".