56200212 has 18 divisors (see below), whose sum is σ = 142061738. Its totient is φ = 18733392.

The previous prime is 56200189. The next prime is 56200219. The reversal of 56200212 is 21200265.

It can be written as a sum of positive squares in only one way, i.e., 36433296 + 19766916 = 6036^2 + 4446^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56200219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 780523 + ... + 780594.

Almost surely, 2^56200212 is an apocalyptic number.

It is an amenable number.

56200212 is an abundant number, since it is smaller than the sum of its proper divisors (85861526).

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

56200212 is a wasteful number, since it uses less digits than its factorization.

56200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561127 (or 1561122 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 56200212 is about 7496.6800652022. The cubic root of 56200212 is about 383.0416368598.

Adding to 56200212 its reverse (21200265), we get a palindrome (77400477).

The spelling of 56200212 in words is "fifty-six million, two hundred thousand, two hundred twelve".