55384434 has 24 divisors (see below), whose sum is σ = 137142720. Its totient is φ = 15824088.

The previous prime is 55384423. The next prime is 55384447. The reversal of 55384434 is 43448355.

55384434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 219654 + ... + 219905.

It is an arithmetic number, because the mean of its divisors is an integer number (5714280).

Almost surely, 2^55384434 is an apocalyptic number.

55384434 is an abundant number, since it is smaller than the sum of its proper divisors (81758286).

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

55384434 is a wasteful number, since it uses less digits than its factorization.

55384434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439574 (or 439571 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 55384434 is about 7442.0718889299. The cubic root of 55384434 is about 381.1792406887.

It can be divided in two parts, 553844 and 34, that added together give a triangular number (553878 = T₁₀₅₂).

The spelling of 55384434 in words is "fifty-five million, three hundred eighty-four thousand, four hundred thirty-four".