25653165 has 16 divisors (see below), whose sum is σ = 42830208. Its totient is φ = 13086656.

The previous prime is 25653163. The next prime is 25653193. The reversal of 25653165 is 56135652.

It is a cyclic number.

It is not a de Polignac number, because 25653165 - 2¹ = 25653163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25653163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36834 + ... + 37523.

It is an arithmetic number, because the mean of its divisors is an integer number (2676888).

Almost surely, 2^25653165 is an apocalyptic number.

It is an amenable number.

25653165 is a deficient number, since it is larger than the sum of its proper divisors (17177043).

25653165 is a wasteful number, since it uses less digits than its factorization.

25653165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74388.

The product of its digits is 27000, while the sum is 33.

The square root of 25653165 is about 5064.8953592350. The cubic root of 25653165 is about 294.9264012508.

The spelling of 25653165 in words is "twenty-five million, six hundred fifty-three thousand, one hundred sixty-five".