55663205 has 16 divisors (see below), whose sum is σ = 72090480. Its totient is φ = 41015808.

The previous prime is 55663193. The next prime is 55663213. The reversal of 55663205 is 50236655.

55663205 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 8 ways, for example, as 279841 + 55383364 = 529^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 55663205 - 2⁴ = 55663189 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 53369 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (4505655).

Almost surely, 2^55663205 is an apocalyptic number.

It is an amenable number.

55663205 is a deficient number, since it is larger than the sum of its proper divisors (16427275).

55663205 is a wasteful number, since it uses less digits than its factorization.

55663205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 55663205 is about 7460.7777744683. Note that the first 5 decimals coincide. The cubic root of 55663205 is about 381.8177108752.

The spelling of 55663205 in words is "fifty-five million, six hundred sixty-three thousand, two hundred five".