25868984 has 8 divisors (see below), whose sum is σ = 48504360. Its totient is φ = 12934488.

The previous prime is 25868971. The next prime is 25868987. The reversal of 25868984 is 48986852.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25868987) 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 as a sum of consecutive naturals, namely, 1616804 + ... + 1616819.

It is an arithmetic number, because the mean of its divisors is an integer number (6063045).

Almost surely, 2^25868984 is an apocalyptic number.

It is an amenable number.

25868984 is a deficient number, since it is larger than the sum of its proper divisors (22635376).

25868984 is a wasteful number, since it uses less digits than its factorization.

25868984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233629 (or 3233625 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 50.

The square root of 25868984 is about 5086.1561124291. The cubic root of 25868984 is about 295.7511604785.

The spelling of 25868984 in words is "twenty-five million, eight hundred sixty-eight thousand, nine hundred eighty-four".