25260663 has 4 divisors (see below), whose sum is σ = 33680888. Its totient is φ = 16840440.

The previous prime is 25260661. The next prime is 25260689. The reversal of 25260663 is 36606252.

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

It is not a de Polignac number, because 25260663 - 2¹ = 25260661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25260663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260661) 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 3 ways as a sum of consecutive naturals, for example, 4210108 + ... + 4210113.

It is an arithmetic number, because the mean of its divisors is an integer number (8420222).

Almost surely, 2^25260663 is an apocalyptic number.

25260663 is a deficient number, since it is larger than the sum of its proper divisors (8420225).

25260663 is an equidigital number, since it uses as much as digits as its factorization.

25260663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420224.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 25260663 is about 5025.9987067249. The cubic root of 25260663 is about 293.4145064895.

The spelling of 25260663 in words is "twenty-five million, two hundred sixty thousand, six hundred sixty-three".