56223120 has 80 divisors (see below), whose sum is σ = 175078080. Its totient is φ = 14925312.

The previous prime is 56223103. The next prime is 56223127. The reversal of 56223120 is 2132265.

56223120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×56223120² = 6322078445068800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56223127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75711 + ... + 76449.

It is an arithmetic number, because the mean of its divisors is an integer number (2188476).

Almost surely, 2^56223120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87539040).

56223120 is an abundant number, since it is smaller than the sum of its proper divisors (118854960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56223120 is a wasteful number, since it uses less digits than its factorization.

56223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 56223120 is about 7498.2077858646. The cubic root of 56223120 is about 383.0936741834.

Adding to 56223120 its reverse (2132265), we get a palindrome (58355385).

The spelling of 56223120 in words is "fifty-six million, two hundred twenty-three thousand, one hundred twenty".