55289544 has 128 divisors (see below), whose sum is σ = 155952000. Its totient is φ = 16257024.

The previous prime is 55289519. The next prime is 55289557. The reversal of 55289544 is 44598255.

55289544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55289496 and 55289505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489232 + ... + 489344.

It is an arithmetic number, because the mean of its divisors is an integer number (1218375).

Almost surely, 2^55289544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55289544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77976000).

55289544 is an abundant number, since it is smaller than the sum of its proper divisors (100662456).

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

55289544 is a wasteful number, since it uses less digits than its factorization.

55289544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 203 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 55289544 is about 7435.6939151635. The cubic root of 55289544 is about 380.9614251285.

The spelling of 55289544 in words is "fifty-five million, two hundred eighty-nine thousand, five hundred forty-four".