55993844 has 6 divisors (see below), whose sum is σ = 97989234. Its totient is φ = 27996920.

The previous prime is 55993837. The next prime is 55993853. The reversal of 55993844 is 44839955.

It can be written as a sum of positive squares in only one way, i.e., 36457444 + 19536400 = 6038^2 + 4420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6999227 + ... + 6999234.

It is an arithmetic number, because the mean of its divisors is an integer number (16331539).

Almost surely, 2^55993844 is an apocalyptic number.

It is an amenable number.

55993844 is a deficient number, since it is larger than the sum of its proper divisors (41995390).

55993844 is a wasteful number, since it uses less digits than its factorization.

55993844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998465 (or 13998463 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 55993844 is about 7482.9034471921. The cubic root of 55993844 is about 382.5722169879.

The spelling of 55993844 in words is "fifty-five million, nine hundred ninety-three thousand, eight hundred forty-four".