25644063 has 8 divisors (see below), whose sum is σ = 34229376. Its totient is φ = 17077400.

The previous prime is 25644061. The next prime is 25644067. The reversal of 25644063 is 36044652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25644063 - 2¹ = 25644061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25644063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25644061) 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 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 7238.

It is an arithmetic number, because the mean of its divisors is an integer number (4278672).

Almost surely, 2^25644063 is an apocalyptic number.

25644063 is a deficient number, since it is larger than the sum of its proper divisors (8585313).

25644063 is a wasteful number, since it uses less digits than its factorization.

25644063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 25644063 is about 5063.9967417051. The cubic root of 25644063 is about 294.8915161771.

The spelling of 25644063 in words is "twenty-five million, six hundred forty-four thousand, sixty-three".