56043361651 has 4 divisors (see below), whose sum is σ = 56471173704. Its totient is φ = 55615549600.

The previous prime is 56043361637. The next prime is 56043361691. The reversal of 56043361651 is 15616334065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56043361651 - 2⁷ = 56043361523 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56043361691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213905830 + ... + 213906091.

It is an arithmetic number, because the mean of its divisors is an integer number (14117793426).

Almost surely, 2^56043361651 is an apocalyptic number.

56043361651 is a deficient number, since it is larger than the sum of its proper divisors (427812053).

56043361651 is a wasteful number, since it uses less digits than its factorization.

56043361651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427812052.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 56043361651 in words is "fifty-six billion, forty-three million, three hundred sixty-one thousand, six hundred fifty-one".