25130305 has 16 divisors (see below), whose sum is σ = 31325184. Its totient is φ = 19333440.

The previous prime is 25130297. The next prime is 25130309. The reversal of 25130305 is 50303152.

It is not a de Polignac number, because 25130305 - 2³ = 25130297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25130309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30124 + ... + 30946.

It is an arithmetic number, because the mean of its divisors is an integer number (1957824).

Almost surely, 2^25130305 is an apocalyptic number.

It is an amenable number.

25130305 is a deficient number, since it is larger than the sum of its proper divisors (6194879).

25130305 is a wasteful number, since it uses less digits than its factorization.

25130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25130305 is about 5013.0135647133. The cubic root of 25130305 is about 292.9089125781.

Adding to 25130305 its reverse (50303152), we get a palindrome (75433457).

The spelling of 25130305 in words is "twenty-five million, one hundred thirty thousand, three hundred five".