25718412 has 12 divisors (see below), whose sum is σ = 60009656. Its totient is φ = 8572800.

The previous prime is 25718387. The next prime is 25718417. The reversal of 25718412 is 21481752.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×25718412³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 25718412.

It is not an unprimeable number, because it can be changed into a prime (25718417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071589 + ... + 1071612.

Almost surely, 2^25718412 is an apocalyptic number.

It is an amenable number.

25718412 is an abundant number, since it is smaller than the sum of its proper divisors (34291244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25718412 is a wasteful number, since it uses less digits than its factorization.

25718412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143208 (or 2143206 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 25718412 is about 5071.3323693089. The cubic root of 25718412 is about 295.1762310017.

The spelling of 25718412 in words is "twenty-five million, seven hundred eighteen thousand, four hundred twelve".