56326221 has 12 divisors (see below), whose sum is σ = 92983072. Its totient is φ = 32186376.

The previous prime is 56326189. The next prime is 56326223. The reversal of 56326221 is 12262365.

56326221 is a `hidden beast` number, since 5 + 6 + 32 + 622 + 1 = 666.

It is not a de Polignac number, because 56326221 - 2⁵ = 56326189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56326223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446971 + ... + 447096.

Almost surely, 2^56326221 is an apocalyptic number.

It is an amenable number.

56326221 is a deficient number, since it is larger than the sum of its proper divisors (36656851).

56326221 is a wasteful number, since it uses less digits than its factorization.

56326221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894080 (or 894077 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 56326221 is about 7505.0796797902. The cubic root of 56326221 is about 383.3277014085.

Adding to 56326221 its reverse (12262365), we get a palindrome (68588586).

The spelling of 56326221 in words is "fifty-six million, three hundred twenty-six thousand, two hundred twenty-one".