56221206 has 8 divisors (see below), whose sum is σ = 112442424. Its totient is φ = 18740400.

The previous prime is 56221201. The next prime is 56221213. The reversal of 56221206 is 60212265.

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

56221206 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56221201) 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, 4685095 + ... + 4685106.

It is an arithmetic number, because the mean of its divisors is an integer number (14055303).

Almost surely, 2^56221206 is an apocalyptic number.

56221206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56221206 is a wasteful number, since it uses less digits than its factorization.

56221206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370206.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 56221206 is about 7498.0801542795. The cubic root of 56221206 is about 383.0893269231.

The spelling of 56221206 in words is "fifty-six million, two hundred twenty-one thousand, two hundred six".