56216503365305 has 8 divisors (see below), whose sum is σ = 69786004177800. Its totient is φ = 43422402599296.

The previous prime is 56216503365289. The next prime is 56216503365317. The reversal of 56216503365305 is 50356330561265.

It can be written as a sum of positive squares in 4 ways, for example, as 2141835177001 + 54074668188304 = 1463501^2 + 7353548^2 .

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 56216503365305 - 2⁴ = 56216503365289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193850011460 + ... + 193850011749.

It is an arithmetic number, because the mean of its divisors is an integer number (8723250522225).

Almost surely, 2^{56216503365305} is an apocalyptic number.

It is an amenable number.

56216503365305 is a deficient number, since it is larger than the sum of its proper divisors (13569500812495).

56216503365305 is a wasteful number, since it uses less digits than its factorization.

56216503365305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387700023243.

The product of its (nonzero) digits is 7290000, while the sum is 50.

The spelling of 56216503365305 in words is "fifty-six trillion, two hundred sixteen billion, five hundred three million, three hundred sixty-five thousand, three hundred five".