55244212 has 6 divisors (see below), whose sum is σ = 96677378. Its totient is φ = 27622104.

The previous prime is 55244209. The next prime is 55244213. The reversal of 55244212 is 21244255.

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 18714276 = 6044^2 + 4326^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6905523 + ... + 6905530.

Almost surely, 2^55244212 is an apocalyptic number.

It is an amenable number.

55244212 is a deficient number, since it is larger than the sum of its proper divisors (41433166).

55244212 is a wasteful number, since it uses less digits than its factorization.

55244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13811057 (or 13811055 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 55244212 is about 7432.6450204486. The cubic root of 55244212 is about 380.8572796666.

Adding to 55244212 its reverse (21244255), we get a palindrome (76488467).

The spelling of 55244212 in words is "fifty-five million, two hundred forty-four thousand, two hundred twelve".