25632544 has 48 divisors (see below), whose sum is σ = 59101056. Its totient is φ = 10713600.

The previous prime is 25632533. The next prime is 25632553. The reversal of 25632544 is 44523652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7789 + ... + 10579.

It is an arithmetic number, because the mean of its divisors is an integer number (1231272).

Almost surely, 2^25632544 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 25632544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29550528).

25632544 is an abundant number, since it is smaller than the sum of its proper divisors (33468512).

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

25632544 is a wasteful number, since it uses less digits than its factorization.

25632544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2841 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 25632544 is about 5062.8592712024. The cubic root of 25632544 is about 294.8473556748.

The spelling of 25632544 in words is "twenty-five million, six hundred thirty-two thousand, five hundred forty-four".