56616565003 has 4 divisors (see below), whose sum is σ = 56617240680. Its totient is φ = 56615889328.

The previous prime is 56616565001. The next prime is 56616565091. The reversal of 56616565003 is 30056561665.

56616565003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56616565003 - 2¹ = 56616565001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56616565001) 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, 190825 + ... + 386842.

It is an arithmetic number, because the mean of its divisors is an integer number (14154310170).

Almost surely, 2^56616565003 is an apocalyptic number.

56616565003 is a deficient number, since it is larger than the sum of its proper divisors (675677).

56616565003 is an equidigital number, since it uses as much as digits as its factorization.

56616565003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675676.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 56616565003 in words is "fifty-six billion, six hundred sixteen million, five hundred sixty-five thousand, three".