25304832 has 144 divisors (see below), whose sum is σ = 85684480. Its totient is φ = 7216128.

The previous prime is 25304821. The next prime is 25304837. The reversal of 25304832 is 23840352.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25304796 and 25304805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25304837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48123 + ... + 48645.

Almost surely, 2^25304832 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 25304832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42842240).

25304832 is an abundant number, since it is smaller than the sum of its proper divisors (60379648).

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

25304832 is an equidigital number, since it uses as much as digits as its factorization.

25304832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 25304832 is about 5030.3908396863. The cubic root of 25304832 is about 293.5854214957.

The spelling of 25304832 in words is "twenty-five million, three hundred four thousand, eight hundred thirty-two".