56056047 has 16 divisors (see below), whose sum is σ = 76758528. Its totient is φ = 36368640.

The previous prime is 56056001. The next prime is 56056057. The reversal of 56056047 is 74065065.

It is not a de Polignac number, because 56056047 - 2¹⁰ = 56055023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56055999 and 56056017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56056057) 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 15 ways as a sum of consecutive naturals, for example, 44922 + ... + 46152.

It is an arithmetic number, because the mean of its divisors is an integer number (4797408).

Almost surely, 2^56056047 is an apocalyptic number.

56056047 is a deficient number, since it is larger than the sum of its proper divisors (20702481).

56056047 is a wasteful number, since it uses less digits than its factorization.

56056047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 56056047 is about 7487.0586347377. The cubic root of 56056047 is about 382.7138297757.

The spelling of 56056047 in words is "fifty-six million, fifty-six thousand, forty-seven".