25828632 has 80 divisors (see below), whose sum is σ = 75533040. Its totient is φ = 8230464.

The previous prime is 25828631. The next prime is 25828651. The reversal of 25828632 is 23682852.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25828631) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14038 + ... + 15770.

It is an arithmetic number, because the mean of its divisors is an integer number (944163).

Almost surely, 2^25828632 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 25828632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37766520).

25828632 is an abundant number, since it is smaller than the sum of its proper divisors (49704408).

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

25828632 is a wasteful number, since it uses less digits than its factorization.

25828632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1761 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 25828632 is about 5082.1877179026. The cubic root of 25828632 is about 295.5973036255.

The spelling of 25828632 in words is "twenty-five million, eight hundred twenty-eight thousand, six hundred thirty-two".