56654781085 has 16 divisors (see below), whose sum is σ = 77751603072. Its totient is φ = 38822184000.

The previous prime is 56654781059. The next prime is 56654781101. The reversal of 56654781085 is 58018745665.

It is not a de Polignac number, because 56654781085 - 2⁹ = 56654780573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 507006 + ... + 608575.

It is an arithmetic number, because the mean of its divisors is an integer number (4859475192).

Almost surely, 2^56654781085 is an apocalyptic number.

It is an amenable number.

56654781085 is a deficient number, since it is larger than the sum of its proper divisors (21096821987).

56654781085 is a wasteful number, since it uses less digits than its factorization.

56654781085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117044.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 56654781085 in words is "fifty-six billion, six hundred fifty-four million, seven hundred eighty-one thousand, eighty-five".