30004825 has 24 divisors (see below), whose sum is σ = 38731896. Its totient is φ = 23040000.

The previous prime is 30004823. The next prime is 30004829. The reversal of 30004825 is 52840003.

It can be written as a sum of positive squares in 12 ways, for example, as 5442889 + 24561936 = 2333^2 + 4956^2 .

It is not a de Polignac number, because 30004825 - 2¹ = 30004823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30004796 and 30004805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30004823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74625 + ... + 75025.

It is an arithmetic number, because the mean of its divisors is an integer number (1613829).

Almost surely, 2^30004825 is an apocalyptic number.

It is an amenable number.

30004825 is a deficient number, since it is larger than the sum of its proper divisors (8727071).

30004825 is a wasteful number, since it uses less digits than its factorization.

30004825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30004825 is about 5477.6660175662. Note that the first 3 decimals coincide. The cubic root of 30004825 is about 310.7399079211.

Adding to 30004825 its reverse (52840003), we get a palindrome (82844828).

The spelling of 30004825 in words is "thirty million, four thousand, eight hundred twenty-five".