25263265 has 4 divisors (see below), whose sum is σ = 30315924. Its totient is φ = 20210608.

The previous prime is 25263253. The next prime is 25263281. The reversal of 25263265 is 56236252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4460544 + 20802721 = 2112^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 25263265 - 2⁷ = 25263137 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526322 + ... + 2526331.

It is an arithmetic number, because the mean of its divisors is an integer number (7578981).

Almost surely, 2^25263265 is an apocalyptic number.

It is an amenable number.

25263265 is a deficient number, since it is larger than the sum of its proper divisors (5052659).

25263265 is an equidigital number, since it uses as much as digits as its factorization.

25263265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052658.

The product of its digits is 21600, while the sum is 31.

The square root of 25263265 is about 5026.2575540853. The cubic root of 25263265 is about 293.4245806290.

The spelling of 25263265 in words is "twenty-five million, two hundred sixty-three thousand, two hundred sixty-five".