25984039 has 4 divisors (see below), whose sum is σ = 27351640. Its totient is φ = 24616440.

The previous prime is 25984019. The next prime is 25984051. The reversal of 25984039 is 93048952.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25984039 - 2¹⁵ = 25951271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25983992 and 25984010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25984019) 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 3 ways as a sum of consecutive naturals, for example, 683772 + ... + 683809.

It is an arithmetic number, because the mean of its divisors is an integer number (6837910).

Almost surely, 2^25984039 is an apocalyptic number.

25984039 is a deficient number, since it is larger than the sum of its proper divisors (1367601).

25984039 is a wasteful number, since it uses less digits than its factorization.

25984039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367600.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 25984039 is about 5097.4541685041. The cubic root of 25984039 is about 296.1889734064.

It can be divided in two parts, 25 and 984039, that added together give a square (984064 = 992²).

The spelling of 25984039 in words is "twenty-five million, nine hundred eighty-four thousand, thirty-nine".