55255244 has 12 divisors (see below), whose sum is σ = 105487368. Its totient is φ = 25116000.

The previous prime is 55255243. The next prime is 55255259. The reversal of 55255244 is 44255255.

It is a self number, because there is not a number n which added to its sum of digits gives 55255244.

It is not an unprimeable number, because it can be changed into a prime (55255241) 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 3 ways as a sum of consecutive naturals, for example, 627857 + ... + 627944.

It is an arithmetic number, because the mean of its divisors is an integer number (8790614).

Almost surely, 2^55255244 is an apocalyptic number.

It is an amenable number.

55255244 is a deficient number, since it is larger than the sum of its proper divisors (50232124).

55255244 is a wasteful number, since it uses less digits than its factorization.

55255244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255816 (or 1255814 counting only the distinct ones).

The product of its digits is 40000, while the sum is 32.

The square root of 55255244 is about 7433.3871149026. The cubic root of 55255244 is about 380.8826297603.

The spelling of 55255244 in words is "fifty-five million, two hundred fifty-five thousand, two hundred forty-four".