25564063 has 32 divisors (see below), whose sum is σ = 32855040. Its totient is φ = 19388160.

The previous prime is 25564027. The next prime is 25564067. The reversal of 25564063 is 36046552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25564063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25564067) 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 31 ways as a sum of consecutive naturals, for example, 186531 + ... + 186667.

It is an arithmetic number, because the mean of its divisors is an integer number (1026720).

Almost surely, 2^25564063 is an apocalyptic number.

25564063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25564063 is a deficient number, since it is larger than the sum of its proper divisors (7290977).

25564063 is a wasteful number, since it uses less digits than its factorization.

25564063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 25564063 is about 5056.0916724284. The cubic root of 25564063 is about 294.5845458923.

The spelling of 25564063 in words is "twenty-five million, five hundred sixty-four thousand, sixty-three".