30100025 has 12 divisors (see below), whose sum is σ = 38029932. Its totient is φ = 23624640.

The previous prime is 30100019. The next prime is 30100051. The reversal of 30100025 is 52000103.

It can be written as a sum of positive squares in 6 ways, for example, as 364816 + 29735209 = 604^2 + 5453^2 .

It is not a de Polignac number, because 30100025 - 2⁶ = 30099961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30099979 and 30100015.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10034 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (3169161).

Almost surely, 2^30100025 is an apocalyptic number.

It is an amenable number.

30100025 is a deficient number, since it is larger than the sum of its proper divisors (7929907).

30100025 is a wasteful number, since it uses less digits than its factorization.

30100025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780 (or 22775 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30100025 is about 5486.3489681208. The cubic root of 30100025 is about 311.0682018722.

Adding to 30100025 its reverse (52000103), we get a palindrome (82100128).

The spelling of 30100025 in words is "thirty million, one hundred thousand, twenty-five".