30153825 has 72 divisors (see below), whose sum is σ = 59466680. Its totient is φ = 14601600.

The previous prime is 30153811. The next prime is 30153833. The reversal of 30153825 is 52835103.

It can be written as a sum of positive squares in 12 ways, for example, as 28387584 + 1766241 = 5328^2 + 1329^2 .

It is not a de Polignac number, because 30153825 - 2⁸ = 30153569 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 494295 + ... + 494355.

Almost surely, 2^30153825 is an apocalyptic number.

It is an amenable number.

30153825 is a deficient number, since it is larger than the sum of its proper divisors (29312855).

30153825 is a wasteful number, since it uses less digits than its factorization.

30153825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 30153825 is about 5491.2498577282. The cubic root of 30153825 is about 311.2534232942.

Adding to 30153825 its reverse (52835103), we get a palindrome (82988928).

The spelling of 30153825 in words is "thirty million, one hundred fifty-three thousand, eight hundred twenty-five".