56680209 has 16 divisors (see below), whose sum is σ = 85036800. Its totient is φ = 37307088.

The previous prime is 56680201. The next prime is 56680219. The reversal of 56680209 is 90208665.

56680209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56680209 - 2³ = 56680201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56680201) 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 15 ways as a sum of consecutive naturals, for example, 11154 + ... + 15419.

It is an arithmetic number, because the mean of its divisors is an integer number (5314800).

Almost surely, 2^56680209 is an apocalyptic number.

It is an amenable number.

56680209 is a deficient number, since it is larger than the sum of its proper divisors (28356591).

56680209 is a wasteful number, since it uses less digits than its factorization.

56680209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26661 (or 26655 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56680209 is about 7528.6259702551. The cubic root of 56680209 is about 384.1290459838.

The spelling of 56680209 in words is "fifty-six million, six hundred eighty thousand, two hundred nine".