56221006 has 16 divisors (see below), whose sum is σ = 90218016. Its totient is φ = 26182656.

The previous prime is 56220991. The next prime is 56221027. The reversal of 56221006 is 60012265.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5226 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (5638626).

Almost surely, 2^56221006 is an apocalyptic number.

56221006 is a deficient number, since it is larger than the sum of its proper divisors (33997010).

56221006 is a wasteful number, since it uses less digits than its factorization.

56221006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56221006 is about 7498.0668175204. The cubic root of 56221006 is about 383.0888726582.

The spelling of 56221006 in words is "fifty-six million, two hundred twenty-one thousand, six".