56720206 has 8 divisors (see below), whose sum is σ = 89558280. Its totient is φ = 26867448.

The previous prime is 56720203. The next prime is 56720207. The reversal of 56720206 is 60202765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720203) 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, 746281 + ... + 746356.

It is an arithmetic number, because the mean of its divisors is an integer number (11194785).

Almost surely, 2^56720206 is an apocalyptic number.

56720206 is a deficient number, since it is larger than the sum of its proper divisors (32838074).

56720206 is a wasteful number, since it uses less digits than its factorization.

56720206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492658.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56720206 is about 7531.2818298083. The cubic root of 56720206 is about 384.2193796717.

The spelling of 56720206 in words is "fifty-six million, seven hundred twenty thousand, two hundred six".