30072225 has 12 divisors (see below), whose sum is σ = 49719536. Its totient is φ = 16038480.

The previous prime is 30072197. The next prime is 30072227. The reversal of 30072225 is 52227003.

It is not a de Polignac number, because 30072225 - 2⁸ = 30071969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30072227) 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, 200407 + ... + 200556.

Almost surely, 2^30072225 is an apocalyptic number.

It is an amenable number.

30072225 is a deficient number, since it is larger than the sum of its proper divisors (19647311).

30072225 is a wasteful number, since it uses less digits than its factorization.

30072225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400976 (or 400971 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 30072225 is about 5483.8148218188. The cubic root of 30072225 is about 310.9724061635.

Adding to 30072225 its reverse (52227003), we get a palindrome (82299228).

The spelling of 30072225 in words is "thirty million, seventy-two thousand, two hundred twenty-five".