56611278603 has 12 divisors (see below), whose sum is σ = 89205651288. Its totient is φ = 34309865760.

The previous prime is 56611278593. The next prime is 56611278629. The reversal of 56611278603 is 30687211665.

56611278603 is a `hidden beast` number, since 5 + 6 + 6 + 11 + 27 + 8 + 603 = 666.

It is not a de Polignac number, because 56611278603 - 2⁵ = 56611278571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56611278403) 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 11 ways as a sum of consecutive naturals, for example, 285915450 + ... + 285915647.

It is an arithmetic number, because the mean of its divisors is an integer number (7433804274).

Almost surely, 2^56611278603 is an apocalyptic number.

56611278603 is a deficient number, since it is larger than the sum of its proper divisors (32594372685).

56611278603 is a wasteful number, since it uses less digits than its factorization.

56611278603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571831114 (or 571831111 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 56611278603 in words is "fifty-six billion, six hundred eleven million, two hundred seventy-eight thousand, six hundred three".