56557466426611 has 4 divisors (see below), whose sum is σ = 56558016383800. Its totient is φ = 56556916469424.

The previous prime is 56557466426569. The next prime is 56557466426621. The reversal of 56557466426611 is 11662466475565.

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 56557466426611 - 2⁹ = 56557466426099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56557466426621) 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, 274824306 + ... + 275030023.

It is an arithmetic number, because the mean of its divisors is an integer number (14139504095950).

Almost surely, 2^{56557466426611} is an apocalyptic number.

56557466426611 is a deficient number, since it is larger than the sum of its proper divisors (549957189).

56557466426611 is a wasteful number, since it uses less digits than its factorization.

56557466426611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549957188.

The product of its digits is 217728000, while the sum is 64.

The spelling of 56557466426611 in words is "fifty-six trillion, five hundred fifty-seven billion, four hundred sixty-six million, four hundred twenty-six thousand, six hundred eleven".