25802532 has 144 divisors (see below), whose sum is σ = 83341440. Its totient is φ = 6552576.

The previous prime is 25802531. The next prime is 25802561. The reversal of 25802532 is 23520852.

It is a super-2 number, since 2×25802532² = 1331541315222048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25802496 and 25802505.

It is not an unprimeable number, because it can be changed into a prime (25802531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81238 + ... + 81554.

It is an arithmetic number, because the mean of its divisors is an integer number (578760).

Almost surely, 2^25802532 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 25802532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41670720).

25802532 is an abundant number, since it is smaller than the sum of its proper divisors (57538908).

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

25802532 is a wasteful number, since it uses less digits than its factorization.

25802532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25802532 is about 5079.6192770719. The cubic root of 25802532 is about 295.4977024051.

The spelling of 25802532 in words is "twenty-five million, eight hundred two thousand, five hundred thirty-two".