55004 has 6 divisors (see below), whose sum is σ = 96264. Its totient is φ = 27500.

The previous prime is 55001. The next prime is 55009. The reversal of 55004 is 40055.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 55004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6872 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (16044).

2⁵⁵⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

55004 is a deficient number, since it is larger than the sum of its proper divisors (41260).

55004 is a wasteful number, since it uses less digits than its factorization.

55004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13755 (or 13753 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 55004 is about 234.5293158648. The cubic root of 55004 is about 38.0304465131.

Adding to 55004 its reverse (40055), we get a palindrome (95059).

The spelling of 55004 in words is "fifty-five thousand, four".