56396947 has 4 divisors (see below), whose sum is σ = 56775600. Its totient is φ = 56018296.

The previous prime is 56396911. The next prime is 56396957. The reversal of 56396947 is 74969365.

56396947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74969365 = 5 ⋅14993873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56396947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56396947.

It is not an unprimeable number, because it can be changed into a prime (56396957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189103 + ... + 189400.

It is an arithmetic number, because the mean of its divisors is an integer number (14193900).

Almost surely, 2^56396947 is an apocalyptic number.

56396947 is a deficient number, since it is larger than the sum of its proper divisors (378653).

56396947 is a wasteful number, since it uses less digits than its factorization.

56396947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378652.

The product of its digits is 1224720, while the sum is 49.

The square root of 56396947 is about 7509.7900769595. The cubic root of 56396947 is about 383.4880760679.

The spelling of 56396947 in words is "fifty-six million, three hundred ninety-six thousand, nine hundred forty-seven".