25871832 has 128 divisors (see below), whose sum is σ = 83635200. Its totient is φ = 7257600.

The previous prime is 25871831. The next prime is 25871837. The reversal of 25871832 is 23817852.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25871831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107232 + ... + 107472.

It is an arithmetic number, because the mean of its divisors is an integer number (653400).

Almost surely, 2^25871832 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 25871832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41817600).

25871832 is an abundant number, since it is smaller than the sum of its proper divisors (57763368).

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

25871832 is a wasteful number, since it uses less digits than its factorization.

25871832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 324 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 25871832 is about 5086.4360804005. The cubic root of 25871832 is about 295.7620134804.

The spelling of 25871832 in words is "twenty-five million, eight hundred seventy-one thousand, eight hundred thirty-two".