25817412 has 12 divisors (see below), whose sum is σ = 60240656. Its totient is φ = 8605800.

The previous prime is 25817411. The next prime is 25817461. The reversal of 25817412 is 21471852.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25817412.

It is not an unprimeable number, because it can be changed into a prime (25817411) 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, 1075714 + ... + 1075737.

Almost surely, 2^25817412 is an apocalyptic number.

It is an amenable number.

25817412 is an abundant number, since it is smaller than the sum of its proper divisors (34423244).

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

25817412 is a wasteful number, since it uses less digits than its factorization.

25817412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151458 (or 2151456 counting only the distinct ones).

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

The square root of 25817412 is about 5081.0837426675. The cubic root of 25817412 is about 295.5544947753.

The spelling of 25817412 in words is "twenty-five million, eight hundred seventeen thousand, four hundred twelve".