25665055 has 32 divisors (see below), whose sum is σ = 35094528. Its totient is φ = 17884800.

The previous prime is 25665047. The next prime is 25665071. The reversal of 25665055 is 55056652.

It is a happy number.

It is not a de Polignac number, because 25665055 - 2³ = 25665047 is a prime.

It is a super-3 number, since 3×25665055³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (34) 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 a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 25665055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94570 + ... + 94840.

It is an arithmetic number, because the mean of its divisors is an integer number (1096704).

Almost surely, 2^25665055 is an apocalyptic number.

25665055 is a deficient number, since it is larger than the sum of its proper divisors (9429473).

25665055 is a wasteful number, since it uses less digits than its factorization.

25665055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 25665055 is about 5066.0689888710. The cubic root of 25665055 is about 294.9719594146.

The spelling of 25665055 in words is "twenty-five million, six hundred sixty-five thousand, fifty-five".