56146847 has 4 divisors (see below), whose sum is σ = 56556816. Its totient is φ = 55736880.

The previous prime is 56146799. The next prime is 56146873. The reversal of 56146847 is 74864165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74864165 = 5 ⋅14972833.

It is a cyclic number.

It is not a de Polignac number, because 56146847 - 2⁸ = 56146591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56146877) 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 3 ways as a sum of consecutive naturals, for example, 204779 + ... + 205052.

It is an arithmetic number, because the mean of its divisors is an integer number (14139204).

Almost surely, 2^56146847 is an apocalyptic number.

56146847 is a deficient number, since it is larger than the sum of its proper divisors (409969).

56146847 is a wasteful number, since it uses less digits than its factorization.

56146847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409968.

The product of its digits is 161280, while the sum is 41.

The square root of 56146847 is about 7493.1199776862. The cubic root of 56146847 is about 382.9203592017.

The spelling of 56146847 in words is "fifty-six million, one hundred forty-six thousand, eight hundred forty-seven".