56057545015663 has 4 divisors (see below), whose sum is σ = 56061370700488. Its totient is φ = 56053719330840.

The previous prime is 56057545015579. The next prime is 56057545015669. The reversal of 56057545015663 is 36651054575065.

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 56057545015663 - 2⁹ = 56057545015151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56057545015598 and 56057545015607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56057545015669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1912820433 + ... + 1912849738.

It is an arithmetic number, because the mean of its divisors is an integer number (14015342675122).

Almost surely, 2^{56057545015663} is an apocalyptic number.

56057545015663 is a deficient number, since it is larger than the sum of its proper divisors (3825684825).

56057545015663 is a wasteful number, since it uses less digits than its factorization.

56057545015663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825684824.

The product of its (nonzero) digits is 56700000, while the sum is 58.

The spelling of 56057545015663 in words is "fifty-six trillion, fifty-seven billion, five hundred forty-five million, fifteen thousand, six hundred sixty-three".