54856047 has 4 divisors (see below), whose sum is σ = 73141400. Its totient is φ = 36570696.

The previous prime is 54856037. The next prime is 54856057. The reversal of 54856047 is 74065845.

54856047 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.

It is an interprime number because it is at equal distance from previous prime (54856037) and next prime (54856057).

It is not a de Polignac number, because 54856047 - 2⁴ = 54856031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54855996 and 54856014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54856027) 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, 9142672 + ... + 9142677.

It is an arithmetic number, because the mean of its divisors is an integer number (18285350).

Almost surely, 2^54856047 is an apocalyptic number.

54856047 is a deficient number, since it is larger than the sum of its proper divisors (18285353).

54856047 is a wasteful number, since it uses less digits than its factorization.

54856047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18285352.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 54856047 is about 7406.4868189986. The cubic root of 54856047 is about 379.9631704842.

The spelling of 54856047 in words is "fifty-four million, eight hundred fifty-six thousand, forty-seven".