56558646607 has 8 divisors (see below), whose sum is σ = 57210901776. Its totient is φ = 55907803392.

The previous prime is 56558646583. The next prime is 56558646619. The reversal of 56558646607 is 70664685565.

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 56558646607 - 2¹¹ = 56558644559 is a prime.

It is a super-2 number, since 2×56558646607² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558646637) 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, 272308 + ... + 432745.

It is an arithmetic number, because the mean of its divisors is an integer number (7151362722).

Almost surely, 2^56558646607 is an apocalyptic number.

56558646607 is a deficient number, since it is larger than the sum of its proper divisors (652255169).

56558646607 is an equidigital number, since it uses as much as digits as its factorization.

56558646607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705977.

The product of its (nonzero) digits is 36288000, while the sum is 58.

The spelling of 56558646607 in words is "fifty-six billion, five hundred fifty-eight million, six hundred forty-six thousand, six hundred seven".