25984471 has 4 divisors (see below), whose sum is σ = 26686792. Its totient is φ = 25282152.

The previous prime is 25984459. The next prime is 25984481. The reversal of 25984471 is 17448952.

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 25984471 - 2¹¹ = 25982423 is a prime.

It is a super-3 number, since 3×25984471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25984421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351105 + ... + 351178.

It is an arithmetic number, because the mean of its divisors is an integer number (6671698).

Almost surely, 2^25984471 is an apocalyptic number.

25984471 is a deficient number, since it is larger than the sum of its proper divisors (702321).

25984471 is an equidigital number, since it uses as much as digits as its factorization.

25984471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702320.

The product of its digits is 80640, while the sum is 40.

The square root of 25984471 is about 5097.4965424216. The cubic root of 25984471 is about 296.1906148362.

The spelling of 25984471 in words is "twenty-five million, nine hundred eighty-four thousand, four hundred seventy-one".