25944563 has 2 divisors, whose sum is σ = 25944564. Its totient is φ = 25944562.

The previous prime is 25944539. The next prime is 25944587. The reversal of 25944563 is 36544952.

It is a balanced prime because it is at equal distance from previous prime (25944539) and next prime (25944587).

It is a cyclic number.

It is not a de Polignac number, because 25944563 - 2⁸ = 25944307 is a prime.

It is not a weakly prime, because it can be changed into another prime (25941563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12972281 + 12972282.

It is an arithmetic number, because the mean of its divisors is an integer number (12972282).

Almost surely, 2^25944563 is an apocalyptic number.

25944563 is a deficient number, since it is larger than the sum of its proper divisors (1).

25944563 is an equidigital number, since it uses as much as digits as its factorization.

25944563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 25944563 is about 5093.5805677343. The cubic root of 25944563 is about 296.0389033053.

The spelling of 25944563 in words is "twenty-five million, nine hundred forty-four thousand, five hundred sixty-three".