25835128 has 32 divisors (see below), whose sum is σ = 53181360. Its totient is φ = 11668480.

The previous prime is 25835119. The next prime is 25835137. The reversal of 25835128 is 82153852.

It is an interprime number because it is at equal distance from previous prime (25835119) and next prime (25835137).

It is a junction number, because it is equal to n+sod(n) for n = 25835093 and 25835102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14376 + ... + 16072.

Almost surely, 2^25835128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25835128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26590680).

25835128 is an abundant number, since it is smaller than the sum of its proper divisors (27346232).

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

25835128 is a wasteful number, since it uses less digits than its factorization.

25835128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1883 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 25835128 is about 5082.8267725745. The cubic root of 25835128 is about 295.6220828334.

The spelling of 25835128 in words is "twenty-five million, eight hundred thirty-five thousand, one hundred twenty-eight".