25369965 has 12 divisors (see below), whose sum is σ = 43974684. Its totient is φ = 13530624.

The previous prime is 25369951. The next prime is 25369973. The reversal of 25369965 is 56996352.

It can be written as a sum of positive squares in 2 ways, for example, as 14040009 + 11329956 = 3747^2 + 3366^2 .

It is not a de Polignac number, because 25369965 - 2⁷ = 25369837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 563777 = 25369965 / (2 + 5 + 3 + 6 + 9 + 9 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 25369965.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 281844 + ... + 281933.

It is an arithmetic number, because the mean of its divisors is an integer number (3664557).

Almost surely, 2^25369965 is an apocalyptic number.

It is an amenable number.

25369965 is a deficient number, since it is larger than the sum of its proper divisors (18604719).

25369965 is a wasteful number, since it uses less digits than its factorization.

25369965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563788 (or 563785 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 25369965 is about 5036.8606294000. The cubic root of 25369965 is about 293.8370956467.

The spelling of 25369965 in words is "twenty-five million, three hundred sixty-nine thousand, nine hundred sixty-five".