25708032 has 120 divisors (see below), whose sum is σ = 84900816. Its totient is φ = 7335936.

The previous prime is 25708031. The next prime is 25708037. The reversal of 25708032 is 23080752.

It is a junction number, because it is equal to n+sod(n) for n = 25707987 and 25708005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25708031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31858 + ... + 32654.

Almost surely, 2^25708032 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 25708032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42450408).

25708032 is an abundant number, since it is smaller than the sum of its proper divisors (59192784).

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

25708032 is an equidigital number, since it uses as much as digits as its factorization.

25708032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25708032 is about 5070.3088663315. The cubic root of 25708032 is about 295.1365144285.

Adding to 25708032 its reverse (23080752), we get a palindrome (48788784).

The spelling of 25708032 in words is "twenty-five million, seven hundred eight thousand, thirty-two".