56684849 has 4 divisors (see below), whose sum is σ = 61045236. Its totient is φ = 52324464.

The previous prime is 56684843. The next prime is 56684861. The reversal of 56684849 is 94848665.

It is a happy number.

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 13454224 + 43230625 = 3668^2 + 6575^2 .

It is a cyclic number.

It is not a de Polignac number, because 56684849 - 2¹² = 56680753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56684797 and 56684806.

It is not an unprimeable number, because it can be changed into a prime (56684843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180174 + ... + 2180199.

It is an arithmetic number, because the mean of its divisors is an integer number (15261309).

Almost surely, 2^56684849 is an apocalyptic number.

It is an amenable number.

56684849 is a deficient number, since it is larger than the sum of its proper divisors (4360387).

56684849 is a wasteful number, since it uses less digits than its factorization.

56684849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360386.

The product of its digits is 1658880, while the sum is 50.

The square root of 56684849 is about 7528.9341211090. The cubic root of 56684849 is about 384.1395276561.

The spelling of 56684849 in words is "fifty-six million, six hundred eighty-four thousand, eight hundred forty-nine".