56724841 has 4 divisors (see below), whose sum is σ = 58680900. Its totient is φ = 54768784.

The previous prime is 56724839. The next prime is 56724847. The reversal of 56724841 is 14842765.

56724841 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 can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 35748441 = 4580^2 + 5979^2 .

It is a cyclic number.

It is not a de Polignac number, because 56724841 - 2¹ = 56724839 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 56724841.

It is not an unprimeable number, because it can be changed into a prime (56724847) 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, 977986 + ... + 978043.

It is an arithmetic number, because the mean of its divisors is an integer number (14670225).

Almost surely, 2^56724841 is an apocalyptic number.

It is an amenable number.

56724841 is a deficient number, since it is larger than the sum of its proper divisors (1956059).

56724841 is a wasteful number, since it uses less digits than its factorization.

56724841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956058.

The product of its digits is 53760, while the sum is 37.

The square root of 56724841 is about 7531.5895400639. The cubic root of 56724841 is about 384.2298451269.

The spelling of 56724841 in words is "fifty-six million, seven hundred twenty-four thousand, eight hundred forty-one".