55671 has 16 divisors (see below), whose sum is σ = 92928. Its totient is φ = 28800.

The previous prime is 55667. The next prime is 55673. The reversal of 55671 is 17655.

55671 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 55671 - 2² = 55667 is a prime.

55671 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111 + ... + 351.

It is an arithmetic number, because the mean of its divisors is an integer number (5808).

2⁵⁵⁶⁷¹ is an apocalyptic number.

55671 is a deficient number, since it is larger than the sum of its proper divisors (37257).

55671 is a wasteful number, since it uses less digits than its factorization.

55671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262.

The product of its digits is 1050, while the sum is 24.

The square root of 55671 is about 235.9470279533. The cubic root of 55671 is about 38.1835533122.

The spelling of 55671 in words is "fifty-five thousand, six hundred seventy-one".