55117271 has 16 divisors (see below), whose sum is σ = 64775040. Its totient is φ = 46357920.

The previous prime is 55117217. The next prime is 55117277. The reversal of 55117271 is 17271155.

55117271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55117271 - 2⁶ = 55117207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117277) by changing a digit.

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, 5921 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (4048440).

Almost surely, 2^55117271 is an apocalyptic number.

55117271 is a deficient number, since it is larger than the sum of its proper divisors (9657769).

55117271 is a wasteful number, since it uses less digits than its factorization.

55117271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206.

The product of its digits is 2450, while the sum is 29.

The square root of 55117271 is about 7424.1006862784. The cubic root of 55117271 is about 380.5653427082.

The spelling of 55117271 in words is "fifty-five million, one hundred seventeen thousand, two hundred seventy-one".