25859532 has 48 divisors (see below), whose sum is σ = 65721600. Its totient is φ = 7882560.

The previous prime is 25859467. The next prime is 25859543. The reversal of 25859532 is 23595852.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4657 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (1369200).

Almost surely, 2^25859532 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 25859532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32860800).

25859532 is an abundant number, since it is smaller than the sum of its proper divisors (39862068).

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

25859532 is a wasteful number, since it uses less digits than its factorization.

25859532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3964 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 25859532 is about 5085.2268385983. The cubic root of 25859532 is about 295.7151356067.

The spelling of 25859532 in words is "twenty-five million, eight hundred fifty-nine thousand, five hundred thirty-two".