30530275 has 12 divisors (see below), whose sum is σ = 37926144. Its totient is φ = 24380000.

The previous prime is 30530267. The next prime is 30530299. The reversal of 30530275 is 57203503.

It is not a de Polignac number, because 30530275 - 2³ = 30530267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25950 + ... + 27100.

It is an arithmetic number, because the mean of its divisors is an integer number (3160512).

Almost surely, 2^30530275 is an apocalyptic number.

30530275 is a deficient number, since it is larger than the sum of its proper divisors (7395869).

30530275 is a wasteful number, since it uses less digits than its factorization.

30530275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 30530275 is about 5525.4207984551. The cubic root of 30530275 is about 312.5433326577.

Adding to 30530275 its reverse (57203503), we get a palindrome (87733778).

The spelling of 30530275 in words is "thirty million, five hundred thirty thousand, two hundred seventy-five".