56332220 has 48 divisors (see below), whose sum is σ = 143156160. Its totient is φ = 18177024.

The previous prime is 56332217. The next prime is 56332223. The reversal of 56332220 is 2223365.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56332217) and next prime (56332223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56332223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9455 + ... + 14214.

It is an arithmetic number, because the mean of its divisors is an integer number (2982420).

Almost surely, 2^56332220 is an apocalyptic number.

It is an amenable number.

56332220 is an abundant number, since it is smaller than the sum of its proper divisors (86823940).

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

56332220 is a wasteful number, since it uses less digits than its factorization.

56332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23702 (or 23700 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 56332220 is about 7505.4793317949. The cubic root of 56332220 is about 383.3413096429.

Adding to 56332220 its reverse (2223365), we get a palindrome (58555585).

The spelling of 56332220 in words is "fifty-six million, three hundred thirty-two thousand, two hundred twenty".