25889016 has 32 divisors (see below), whose sum is σ = 65946960. Its totient is φ = 8466432.

The previous prime is 25888997. The next prime is 25889021. The reversal of 25889016 is 61098852.

It is a super-2 number, since 2×25889016² = 1340482298896512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8905 + ... + 11448.

Almost surely, 2^25889016 is an apocalyptic number.

It is an amenable number.

25889016 is an abundant number, since it is smaller than the sum of its proper divisors (40057944).

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

25889016 is a wasteful number, since it uses less digits than its factorization.

25889016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20415 (or 20411 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 25889016 is about 5088.1249984646. The cubic root of 25889016 is about 295.8274804282.

The spelling of 25889016 in words is "twenty-five million, eight hundred eighty-nine thousand, sixteen".