55329 has 4 divisors (see below), whose sum is σ = 73776. Its totient is φ = 36884.

The previous prime is 55313. The next prime is 55331. The reversal of 55329 is 92355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55329 - 2⁴ = 55313 is a prime.

It is a super-2 number, since 2×55329² = 6122596482, which contains 22 as substring.

It is a D-number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 55299 and 55308.

It is not an unprimeable number, because it can be changed into a prime (55339) 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, 9219 + ... + 9224.

It is an arithmetic number, because the mean of its divisors is an integer number (18444).

2⁵⁵³²⁹ is an apocalyptic number.

It is an amenable number.

55329 is a deficient number, since it is larger than the sum of its proper divisors (18447).

55329 is a wasteful number, since it uses less digits than its factorization.

55329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18446.

The product of its digits is 1350, while the sum is 24.

The square root of 55329 is about 235.2211725164. The cubic root of 55329 is about 38.1052024778.

The spelling of 55329 in words is "fifty-five thousand, three hundred twenty-nine".