55606385 has 8 divisors (see below), whose sum is σ = 66767976. Its totient is φ = 44458240.

The previous prime is 55606367. The next prime is 55606391. The reversal of 55606385 is 58360655.

55606385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 861184 + 54745201 = 928^2 + 7399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55606385 - 2⁶ = 55606321 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 12905 + ... + 16665.

It is an arithmetic number, because the mean of its divisors is an integer number (8345997).

Almost surely, 2^55606385 is an apocalyptic number.

It is an amenable number.

55606385 is a deficient number, since it is larger than the sum of its proper divisors (11161591).

55606385 is a wasteful number, since it uses less digits than its factorization.

55606385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 55606385 is about 7456.9688882280. The cubic root of 55606385 is about 381.6877490902.

The spelling of 55606385 in words is "fifty-five million, six hundred six thousand, three hundred eighty-five".