25200530 has 16 divisors (see below), whose sum is σ = 45434520. Its totient is φ = 10063872.

The previous prime is 25200491. The next prime is 25200559. The reversal of 25200530 is 3500252.

It can be written as a sum of positive squares in 4 ways, for example, as 20241001 + 4959529 = 4499^2 + 2227^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25200499 and 25200508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5906 + ... + 9234.

Almost surely, 2^25200530 is an apocalyptic number.

25200530 is a deficient number, since it is larger than the sum of its proper divisors (20233990).

25200530 is a wasteful number, since it uses less digits than its factorization.

25200530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 25200530 is about 5020.0129481905. The cubic root of 25200530 is about 293.1814971198.

Adding to 25200530 its reverse (3500252), we get a palindrome (28700782).

The spelling of 25200530 in words is "twenty-five million, two hundred thousand, five hundred thirty".