25525648 has 40 divisors (see below), whose sum is σ = 52068096. Its totient is φ = 12105600.

The previous prime is 25525627. The next prime is 25525649. The reversal of 25525648 is 84652552.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25525649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25803 + ... + 26773.

Almost surely, 2^25525648 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 25525648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26034048).

25525648 is an abundant number, since it is smaller than the sum of its proper divisors (26542448).

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

25525648 is a wasteful number, since it uses less digits than its factorization.

25525648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1057 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 25525648 is about 5052.2913613528. The cubic root of 25525648 is about 294.4369149717.

The spelling of 25525648 in words is "twenty-five million, five hundred twenty-five thousand, six hundred forty-eight".