25072265 has 8 divisors (see below), whose sum is σ = 30132168. Its totient is φ = 20027520.

The previous prime is 25072261. The next prime is 25072283. The reversal of 25072265 is 56227052.

It can be written as a sum of positive squares in 4 ways, for example, as 12313081 + 12759184 = 3509^2 + 3572^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25072265 - 2² = 25072261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25072261) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (3766521).

Almost surely, 2^25072265 is an apocalyptic number.

It is an amenable number.

25072265 is a deficient number, since it is larger than the sum of its proper divisors (5059903).

25072265 is an equidigital number, since it uses as much as digits as its factorization.

25072265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25072265 is about 5007.2212853039. The cubic root of 25072265 is about 292.6832416474.

The spelling of 25072265 in words is "twenty-five million, seventy-two thousand, two hundred sixty-five".