55489844 has 12 divisors (see below), whose sum is σ = 97478304. Its totient is φ = 27638904.

The previous prime is 55489831. The next prime is 55489849. The reversal of 55489844 is 44898455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55489849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25322 + ... + 27425.

It is an arithmetic number, because the mean of its divisors is an integer number (8123192).

Almost surely, 2^55489844 is an apocalyptic number.

It is an amenable number.

55489844 is a deficient number, since it is larger than the sum of its proper divisors (41988460).

55489844 is a wasteful number, since it uses less digits than its factorization.

55489844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53014 (or 53012 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 55489844 is about 7449.1505556003. The cubic root of 55489844 is about 381.4209129237.

The spelling of 55489844 in words is "fifty-five million, four hundred eighty-nine thousand, eight hundred forty-four".