55485271 has 4 divisors (see below), whose sum is σ = 55558944. Its totient is φ = 55411600.

The previous prime is 55485233. The next prime is 55485277. The reversal of 55485271 is 17258455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55485271 - 2¹⁵ = 55452503 is a prime.

It is a super-3 number, since 3×55485271³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55485271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55485277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35695 + ... + 37216.

It is an arithmetic number, because the mean of its divisors is an integer number (13889736).

Almost surely, 2^55485271 is an apocalyptic number.

55485271 is a deficient number, since it is larger than the sum of its proper divisors (73673).

55485271 is an equidigital number, since it uses as much as digits as its factorization.

55485271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73672.

The product of its digits is 56000, while the sum is 37.

The square root of 55485271 is about 7448.8436015263. The cubic root of 55485271 is about 381.4104348156.

The spelling of 55485271 in words is "fifty-five million, four hundred eighty-five thousand, two hundred seventy-one".