25888428 has 36 divisors (see below), whose sum is σ = 66343368. Its totient is φ = 8510400.

The previous prime is 25888417. The next prime is 25888453. The reversal of 25888428 is 82488852.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25888428² = 1340421408622368, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 2298 + ... + 7553.

Almost surely, 2^25888428 is an apocalyptic number.

It is an amenable number.

25888428 is an abundant number, since it is smaller than the sum of its proper divisors (40454940).

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

25888428 is a wasteful number, since it uses less digits than its factorization.

25888428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9934 (or 9929 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The square root of 25888428 is about 5088.0672165371. The cubic root of 25888428 is about 295.8252407670.

The spelling of 25888428 in words is "twenty-five million, eight hundred eighty-eight thousand, four hundred twenty-eight".