25655163 has 4 divisors (see below), whose sum is σ = 34206888. Its totient is φ = 17103440.

The previous prime is 25655117. The next prime is 25655167. The reversal of 25655163 is 36155652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25655163 - 2⁸ = 25654907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25655167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275858 + ... + 4275863.

It is an arithmetic number, because the mean of its divisors is an integer number (8551722).

Almost surely, 2^25655163 is an apocalyptic number.

25655163 is a deficient number, since it is larger than the sum of its proper divisors (8551725).

25655163 is an equidigital number, since it uses as much as digits as its factorization.

25655163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551724.

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

The square root of 25655163 is about 5065.0925954024. The cubic root of 25655163 is about 294.9340578454.

The spelling of 25655163 in words is "twenty-five million, six hundred fifty-five thousand, one hundred sixty-three".