25225965 has 16 divisors (see below), whose sum is σ = 44846400. Its totient is φ = 13453776.

The previous prime is 25225961. The next prime is 25225997. The reversal of 25225965 is 56952252.

It is not a de Polignac number, because 25225965 - 2² = 25225961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225961) 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 15 ways as a sum of consecutive naturals, for example, 93295 + ... + 93564.

It is an arithmetic number, because the mean of its divisors is an integer number (2802900).

Almost surely, 2^25225965 is an apocalyptic number.

It is an amenable number.

25225965 is a deficient number, since it is larger than the sum of its proper divisors (19620435).

25225965 is a wasteful number, since it uses less digits than its factorization.

25225965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186873 (or 186867 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 25225965 is about 5022.5456692797. The cubic root of 25225965 is about 293.2801003894.

The spelling of 25225965 in words is "twenty-five million, two hundred twenty-five thousand, nine hundred sixty-five".