55355544 has 48 divisors (see below), whose sum is σ = 150527520. Its totient is φ = 18377280.

The previous prime is 55355533. The next prime is 55355551. The reversal of 55355544 is 44555355.

55355544 is a `hidden beast` number, since 553 + 55 + 54 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55355499 and 55355508.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18094 + ... + 20930.

It is an arithmetic number, because the mean of its divisors is an integer number (3135990).

Almost surely, 2^55355544 is an apocalyptic number.

It is an amenable number.

55355544 is an abundant number, since it is smaller than the sum of its proper divisors (95171976).

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

55355544 is a wasteful number, since it uses less digits than its factorization.

55355544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3113 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 55355544 is about 7440.1306440143. The cubic root of 55355544 is about 381.1129514037.

The spelling of 55355544 in words is "fifty-five million, three hundred fifty-five thousand, five hundred forty-four".