56221306 has 8 divisors (see below), whose sum is σ = 86126400. Its totient is φ = 27512508.

The previous prime is 56221301. The next prime is 56221309. The reversal of 56221306 is 60312265.

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

It is not an unprimeable number, because it can be changed into a prime (56221301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298956 + ... + 299143.

It is an arithmetic number, because the mean of its divisors is an integer number (10765800).

Almost surely, 2^56221306 is an apocalyptic number.

56221306 is a deficient number, since it is larger than the sum of its proper divisors (29905094).

56221306 is a wasteful number, since it uses less digits than its factorization.

56221306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598148.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 56221306 is about 7498.0868226502. The cubic root of 56221306 is about 383.0895540551.

The spelling of 56221306 in words is "fifty-six million, two hundred twenty-one thousand, three hundred six".