30055 has 4 divisors (see below), whose sum is σ = 36072. Its totient is φ = 24040.

The previous prime is 30047. The next prime is 30059. The reversal of 30055 is 55003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55003 = 13 ⋅4231.

It is not a de Polignac number, because 30055 - 2³ = 30047 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30059) 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, 3001 + ... + 3010.

It is an arithmetic number, because the mean of its divisors is an integer number (9018).

2³⁰⁰⁵⁵ is an apocalyptic number.

30055 is a deficient number, since it is larger than the sum of its proper divisors (6017).

30055 is an equidigital number, since it uses as much as digits as its factorization.

30055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016.

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 30055 is about 173.3637793774. The cubic root of 30055 is about 31.0913021103.

Adding to 30055 its reverse (55003), we get a palindrome (85058).

The spelling of 30055 in words is "thirty thousand, fifty-five".