56027221 has 4 divisors (see below), whose sum is σ = 56140000. Its totient is φ = 55914444.

The previous prime is 56027203. The next prime is 56027239. The reversal of 56027221 is 12272065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (56027203) and next prime (56027239).

It is a cyclic number.

It is not a de Polignac number, because 56027221 - 2⁷ = 56027093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56021221) 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, 55641 + ... + 56638.

It is an arithmetic number, because the mean of its divisors is an integer number (14035000).

Almost surely, 2^56027221 is an apocalyptic number.

It is an amenable number.

56027221 is a deficient number, since it is larger than the sum of its proper divisors (112779).

56027221 is a wasteful number, since it uses less digits than its factorization.

56027221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112778.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56027221 is about 7485.1333321458. The cubic root of 56027221 is about 382.6482168697.

Adding to 56027221 its reverse (12272065), we get a palindrome (68299286).

The spelling of 56027221 in words is "fifty-six million, twenty-seven thousand, two hundred twenty-one".