56513681063 has 8 divisors (see below), whose sum is σ = 64628293632. Its totient is φ = 48409375896.

The previous prime is 56513681047. The next prime is 56513681083. The reversal of 56513681063 is 36018631565.

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

It is not a de Polignac number, because 56513681063 - 2⁴ = 56513681047 is a prime.

It is a super-2 number, since 2×56513681063² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56513681083) 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 7 ways as a sum of consecutive naturals, for example, 2565095 + ... + 2587032.

It is an arithmetic number, because the mean of its divisors is an integer number (8078536704).

Almost surely, 2^56513681063 is an apocalyptic number.

56513681063 is a deficient number, since it is larger than the sum of its proper divisors (8114612569).

56513681063 is a wasteful number, since it uses less digits than its factorization.

56513681063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153701.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 56513681063 in words is "fifty-six billion, five hundred thirteen million, six hundred eighty-one thousand, sixty-three".