25325636 has 48 divisors (see below), whose sum is σ = 52899840. Its totient is φ = 10380960.

The previous prime is 25325627. The next prime is 25325639. The reversal of 25325636 is 63652352.

It is not an unprimeable number, because it can be changed into a prime (25325639) 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, 141395 + ... + 141573.

It is an arithmetic number, because the mean of its divisors is an integer number (1102080).

Almost surely, 2^25325636 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 25325636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26449920).

25325636 is an abundant number, since it is smaller than the sum of its proper divisors (27574204).

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

25325636 is a wasteful number, since it uses less digits than its factorization.

25325636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 25325636 is about 5032.4582462252. The cubic root of 25325636 is about 293.6658551203.

Adding to 25325636 its reverse (63652352), we get a palindrome (88977988).

The spelling of 25325636 in words is "twenty-five million, three hundred twenty-five thousand, six hundred thirty-six".