55538205 has 32 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 28299840.

The previous prime is 55538191. The next prime is 55538207. The reversal of 55538205 is 50283555.

It is not a de Polignac number, because 55538205 - 2⁶ = 55538141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55538207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37876 + ... + 39314.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^55538205 is an apocalyptic number.

It is an amenable number.

55538205 is a deficient number, since it is larger than the sum of its proper divisors (37359075).

55538205 is a wasteful number, since it uses less digits than its factorization.

55538205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 55538205 is about 7452.3959234598. The cubic root of 55538205 is about 381.5316871923.

The spelling of 55538205 in words is "fifty-five million, five hundred thirty-eight thousand, two hundred five".