30550225 has 12 divisors (see below), whose sum is σ = 38341296. Its totient is φ = 24144080.

The previous prime is 30550217. The next prime is 30550237. The reversal of 30550225 is 52205503.

It is not a de Polignac number, because 30550225 - 2³ = 30550217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30550196 and 30550205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5287 + ... + 9436.

It is an arithmetic number, because the mean of its divisors is an integer number (3195108).

Almost surely, 2^30550225 is an apocalyptic number.

It is an amenable number.

30550225 is a deficient number, since it is larger than the sum of its proper divisors (7791071).

30550225 is a wasteful number, since it uses less digits than its factorization.

30550225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14816 (or 14811 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 30550225 is about 5527.2257960029. The cubic root of 30550225 is about 312.6113949537.

Adding to 30550225 its reverse (52205503), we get a palindrome (82755728).

The spelling of 30550225 in words is "thirty million, five hundred fifty thousand, two hundred twenty-five".