25604532 has 48 divisors (see below), whose sum is σ = 67244800. Its totient is φ = 8424000.

The previous prime is 25604507. The next prime is 25604539. The reversal of 25604532 is 23540652.

25604532 is a `hidden beast` number, since 2 + 5 + 604 + 53 + 2 = 666.

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 = 25604496 and 25604505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25604539) 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, 7032 + ... + 10032.

Almost surely, 2^25604532 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 25604532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33622400).

25604532 is an abundant number, since it is smaller than the sum of its proper divisors (41640268).

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

25604532 is a wasteful number, since it uses less digits than its factorization.

25604532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25604532 is about 5060.0920940236. The cubic root of 25604532 is about 294.7399105637.

The spelling of 25604532 in words is "twenty-five million, six hundred four thousand, five hundred thirty-two".