30020125 has 16 divisors (see below), whose sum is σ = 37760112. Its totient is φ = 23827200.

The previous prime is 30020119. The next prime is 30020173. The reversal of 30020125 is 52102003.

It can be written as a sum of positive squares in 8 ways, for example, as 17530969 + 12489156 = 4187^2 + 3534^2 .

It is not a de Polignac number, because 30020125 - 2¹⁵ = 29987357 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 16249 + ... + 18001.

It is an arithmetic number, because the mean of its divisors is an integer number (2360007).

Almost surely, 2^30020125 is an apocalyptic number.

It is an amenable number.

30020125 is a deficient number, since it is larger than the sum of its proper divisors (7739987).

30020125 is a wasteful number, since it uses less digits than its factorization.

30020125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30020125 is about 5479.0624197941. The cubic root of 30020125 is about 310.7927162357.

Adding to 30020125 its reverse (52102003), we get a palindrome (82122128).

The spelling of 30020125 in words is "thirty million, twenty thousand, one hundred twenty-five".