25204265 has 4 divisors (see below), whose sum is σ = 30245124. Its totient is φ = 20163408.

The previous prime is 25204259. The next prime is 25204337. The reversal of 25204265 is 56240252.

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 6817321 + 18386944 = 2611^2 + 4288^2 .

It is a cyclic number.

It is not a de Polignac number, because 25204265 - 2⁸ = 25204009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520422 + ... + 2520431.

It is an arithmetic number, because the mean of its divisors is an integer number (7561281).

Almost surely, 2^25204265 is an apocalyptic number.

It is an amenable number.

25204265 is a deficient number, since it is larger than the sum of its proper divisors (5040859).

25204265 is an equidigital number, since it uses as much as digits as its factorization.

25204265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040858.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 25204265 is about 5020.3849454001. The cubic root of 25204265 is about 293.1959806617.

The spelling of 25204265 in words is "twenty-five million, two hundred four thousand, two hundred sixty-five".