30387225 has 24 divisors (see below), whose sum is σ = 54808992. Its totient is φ = 14732800.

The previous prime is 30387187. The next prime is 30387293. The reversal of 30387225 is 52278303.

It is not a de Polignac number, because 30387225 - 2⁸ = 30386969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30387192 and 30387201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17592 + ... + 19241.

It is an arithmetic number, because the mean of its divisors is an integer number (2283708).

Almost surely, 2^30387225 is an apocalyptic number.

It is an amenable number.

30387225 is a deficient number, since it is larger than the sum of its proper divisors (24421767).

30387225 is a wasteful number, since it uses less digits than its factorization.

30387225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36857 (or 36852 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 30387225 is about 5512.4608842150. The cubic root of 30387225 is about 312.0544263204.

The spelling of 30387225 in words is "thirty million, three hundred eighty-seven thousand, two hundred twenty-five".