30539225 has 24 divisors (see below), whose sum is σ = 40419288. Its totient is φ = 22809600.

The previous prime is 30539221. The next prime is 30539231. The reversal of 30539225 is 52293503.

It can be written as a sum of positive squares in 12 ways, for example, as 10896601 + 19642624 = 3301^2 + 4432^2 .

It is not a de Polignac number, because 30539225 - 2² = 30539221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30539221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76727 + ... + 77123.

It is an arithmetic number, because the mean of its divisors is an integer number (1684137).

Almost surely, 2^30539225 is an apocalyptic number.

It is an amenable number.

30539225 is a deficient number, since it is larger than the sum of its proper divisors (9880063).

30539225 is a wasteful number, since it uses less digits than its factorization.

30539225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 30539225 is about 5526.2306321760. The cubic root of 30539225 is about 312.5738705367.

The spelling of 30539225 in words is "thirty million, five hundred thirty-nine thousand, two hundred twenty-five".