30225205 has 4 divisors (see below), whose sum is σ = 36270252. Its totient is φ = 24180160.

The previous prime is 30225199. The next prime is 30225227. The reversal of 30225205 is 50252203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50252203 = 1361 ⋅36923.

It can be written as a sum of positive squares in 2 ways, for example, as 5692996 + 24532209 = 2386^2 + 4953^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30225205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022516 + ... + 3022525.

It is an arithmetic number, because the mean of its divisors is an integer number (9067563).

Almost surely, 2^30225205 is an apocalyptic number.

It is an amenable number.

30225205 is a deficient number, since it is larger than the sum of its proper divisors (6045047).

30225205 is an equidigital number, since it uses as much as digits as its factorization.

30225205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045046.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30225205 is about 5497.7454469992. The cubic root of 30225205 is about 311.4988289932.

Adding to 30225205 its reverse (50252203), we get a palindrome (80477408).

The spelling of 30225205 in words is "thirty million, two hundred twenty-five thousand, two hundred five".