56446554447 has 12 divisors (see below), whose sum is σ = 81536109720. Its totient is φ = 37630021968.

The previous prime is 56446554443. The next prime is 56446554449. The reversal of 56446554447 is 74445564465.

56446554447 is a `hidden beast` number, since 5 + 6 + 4 + 46 + 554 + 4 + 47 = 666.

It is not a de Polignac number, because 56446554447 - 2² = 56446554443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56446554393 and 56446554402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56446554443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437773 + ... + 551849.

It is an arithmetic number, because the mean of its divisors is an integer number (6794675810).

Almost surely, 2^56446554447 is an apocalyptic number.

56446554447 is a deficient number, since it is larger than the sum of its proper divisors (25089555273).

56446554447 is a wasteful number, since it uses less digits than its factorization.

56446554447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169062 (or 169059 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 54.

The spelling of 56446554447 in words is "fifty-six billion, four hundred forty-six million, five hundred fifty-four thousand, four hundred forty-seven".