25944863 has 8 divisors (see below), whose sum is σ = 30256800. Its totient is φ = 22238160.

The previous prime is 25944833. The next prime is 25944871. The reversal of 25944863 is 36844952.

It is not a de Polignac number, because 25944863 - 2¹² = 25940767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25944863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25944833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37478 + ... + 38163.

It is an arithmetic number, because the mean of its divisors is an integer number (3782100).

Almost surely, 2^25944863 is an apocalyptic number.

25944863 is a deficient number, since it is larger than the sum of its proper divisors (4311937).

25944863 is an frugal number, since it uses more digits than its factorization.

25944863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75662 (or 75648 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 25944863 is about 5093.6100164814. The cubic root of 25944863 is about 296.0400443450.

The spelling of 25944863 in words is "twenty-five million, nine hundred forty-four thousand, eight hundred sixty-three".