30753225 has 36 divisors (see below), whose sum is σ = 55659136. Its totient is φ = 16230240.

The previous prime is 30753193. The next prime is 30753227. The reversal of 30753225 is 52235703.

It is not a de Polignac number, because 30753225 - 2⁵ = 30753193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30753227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22512 + ... + 23838.

Almost surely, 2^30753225 is an apocalyptic number.

It is an amenable number.

30753225 is a deficient number, since it is larger than the sum of its proper divisors (24905911).

30753225 is a wasteful number, since it uses less digits than its factorization.

30753225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 30753225 is about 5545.5590340380. The cubic root of 30753225 is about 313.3022798811.

Adding to 30753225 its reverse (52235703), we get a palindrome (82988928).

The spelling of 30753225 in words is "thirty million, seven hundred fifty-three thousand, two hundred twenty-five".