30000525 has 48 divisors (see below), whose sum is σ = 53716800. Its totient is φ = 14722560.

The previous prime is 30000521. The next prime is 30000571. The reversal of 30000525 is 52500003.

It is not a de Polignac number, because 30000525 - 2² = 30000521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000521) 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 47 ways as a sum of consecutive naturals, for example, 52441 + ... + 53009.

It is an arithmetic number, because the mean of its divisors is an integer number (1119100).

Almost surely, 2^30000525 is an apocalyptic number.

It is an amenable number.

30000525 is a deficient number, since it is larger than the sum of its proper divisors (23716275).

30000525 is a wasteful number, since it uses less digits than its factorization.

30000525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 30000525 is about 5477.2735005658. The cubic root of 30000525 is about 310.7250631371.

Adding to 30000525 its reverse (52500003), we get a palindrome (82500528).

The spelling of 30000525 in words is "thirty million, five hundred twenty-five", and thus it is an aban number.