56355544406 has 32 divisors (see below), whose sum is σ = 97094991168. Its totient is φ = 24031272960.

The previous prime is 56355544381. The next prime is 56355544409. The reversal of 56355544406 is 60444555365.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56355544409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2618666 + ... + 2640098.

It is an arithmetic number, because the mean of its divisors is an integer number (3034218474).

Almost surely, 2^56355544406 is an apocalyptic number.

56355544406 is a deficient number, since it is larger than the sum of its proper divisors (40739446762).

56355544406 is a wasteful number, since it uses less digits than its factorization.

56355544406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376.

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 56355544406 in words is "fifty-six billion, three hundred fifty-five million, five hundred forty-four thousand, four hundred six".