56122223 has 4 divisors (see below), whose sum is σ = 56526120. Its totient is φ = 55718328.

The previous prime is 56122217. The next prime is 56122237. The reversal of 56122223 is 32222165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56122223 - 2¹⁴ = 56105839 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 (56122273) 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, 201740 + ... + 202017.

It is an arithmetic number, because the mean of its divisors is an integer number (14131530).

Almost surely, 2^56122223 is an apocalyptic number.

56122223 is a deficient number, since it is larger than the sum of its proper divisors (403897).

56122223 is a wasteful number, since it uses less digits than its factorization.

56122223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403896.

The product of its digits is 1440, while the sum is 23.

The square root of 56122223 is about 7491.4766902127. The cubic root of 56122223 is about 382.8643726225.

Adding to 56122223 its reverse (32222165), we get a palindrome (88344388).

The spelling of 56122223 in words is "fifty-six million, one hundred twenty-two thousand, two hundred twenty-three".