30125252 has 12 divisors (see below), whose sum is σ = 54144300. Its totient is φ = 14655456.

The previous prime is 30125243. The next prime is 30125257. The reversal of 30125252 is 25252103.

It can be written as a sum of positive squares in 2 ways, for example, as 18524416 + 11600836 = 4304^2 + 3406^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30125257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101627 + ... + 101922.

It is an arithmetic number, because the mean of its divisors is an integer number (4512025).

Almost surely, 2^30125252 is an apocalyptic number.

It is an amenable number.

30125252 is a deficient number, since it is larger than the sum of its proper divisors (24019048).

30125252 is a wasteful number, since it uses less digits than its factorization.

30125252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203590 (or 203588 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 30125252 is about 5488.6475565480. The cubic root of 30125252 is about 311.1550802746.

Adding to 30125252 its reverse (25252103), we get a palindrome (55377355).

The spelling of 30125252 in words is "thirty million, one hundred twenty-five thousand, two hundred fifty-two".