25871612 has 24 divisors (see below), whose sum is σ = 48921600. Its totient is φ = 11900736.

The previous prime is 25871611. The next prime is 25871617. The reversal of 25871612 is 21617852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25871611) 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 7 ways as a sum of consecutive naturals, for example, 19589 + ... + 20867.

It is an arithmetic number, because the mean of its divisors is an integer number (2038400).

Almost surely, 2^25871612 is an apocalyptic number.

It is an amenable number.

25871612 is a deficient number, since it is larger than the sum of its proper divisors (23049988).

25871612 is a wasteful number, since it uses less digits than its factorization.

25871612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1683 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 25871612 is about 5086.4144542104. The cubic root of 25871612 is about 295.7611751449.

The spelling of 25871612 in words is "twenty-five million, eight hundred seventy-one thousand, six hundred twelve".