25705232 has 40 divisors (see below), whose sum is σ = 58466496. Its totient is φ = 10717056.

The previous prime is 25705219. The next prime is 25705249. The reversal of 25705232 is 23250752.

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, 1043 + ... + 7245.

Almost surely, 2^25705232 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 25705232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29233248).

25705232 is an abundant number, since it is smaller than the sum of its proper divisors (32761264).

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

25705232 is a wasteful number, since it uses less digits than its factorization.

25705232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255 (or 6249 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 25705232 is about 5070.0327415116. The cubic root of 25705232 is about 295.1257990712.

Adding to 25705232 its reverse (23250752), we get a palindrome (48955984).

The spelling of 25705232 in words is "twenty-five million, seven hundred five thousand, two hundred thirty-two".