30275 has 12 divisors (see below), whose sum is σ = 43152. Its totient is φ = 20640.

The previous prime is 30271. The next prime is 30293. The reversal of 30275 is 57203.

It is a Cunningham number, because it is equal to 174²-1.

It is not a de Polignac number, because 30275 - 2² = 30271 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (30271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89 + ... + 261.

It is an arithmetic number, because the mean of its divisors is an integer number (3596).

2³⁰²⁷⁵ is an apocalyptic number.

30275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30275 is a deficient number, since it is larger than the sum of its proper divisors (12877).

30275 is a wasteful number, since it uses less digits than its factorization.

30275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 30275 is about 173.9971264131. The cubic root of 30275 is about 31.1669796391.

Adding to 30275 its reverse (57203), we get a palindrome (87478).

The spelling of 30275 in words is "thirty thousand, two hundred seventy-five".