55047 has 8 divisors (see below), whose sum is σ = 74880. Its totient is φ = 35960.

The previous prime is 55021. The next prime is 55049. The reversal of 55047 is 74055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55047 - 2⁶ = 54983 is a prime.

55047 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 332.

It is an arithmetic number, because the mean of its divisors is an integer number (9360).

2⁵⁵⁰⁴⁷ is an apocalyptic number.

55047 is a deficient number, since it is larger than the sum of its proper divisors (19833).

55047 is a wasteful number, since it uses less digits than its factorization.

55047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 55047 is about 234.6209709297. The cubic root of 55047 is about 38.0403541759.

The spelling of 55047 in words is "fifty-five thousand, forty-seven".