55355144 has 16 divisors (see below), whose sum is σ = 111775020. Its totient is φ = 25548480.

The previous prime is 55355141. The next prime is 55355159. The reversal of 55355144 is 44155355.

It can be written as a sum of positive squares in 2 ways, for example, as 54612100 + 743044 = 7390^2 + 862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55355144.

It is not an unprimeable number, because it can be changed into a prime (55355141) 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, 266027 + ... + 266234.

Almost surely, 2^55355144 is an apocalyptic number.

It is an amenable number.

55355144 is an abundant number, since it is smaller than the sum of its proper divisors (56419876).

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

55355144 is a wasteful number, since it uses less digits than its factorization.

55355144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532280 (or 532276 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 55355144 is about 7440.1037627173. The cubic root of 55355144 is about 381.1120334255.

The spelling of 55355144 in words is "fifty-five million, three hundred fifty-five thousand, one hundred forty-four".