25193648 has 40 divisors (see below), whose sum is σ = 51330048. Its totient is φ = 11956032.

The previous prime is 25193647. The next prime is 25193659. The reversal of 25193648 is 84639152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25193647) 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, 81911 + ... + 82217.

Almost surely, 2^25193648 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 25193648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25665024).

25193648 is an abundant number, since it is smaller than the sum of its proper divisors (26136400).

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

25193648 is a wasteful number, since it uses less digits than its factorization.

25193648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 555 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 25193648 is about 5019.3274449870. The cubic root of 25193648 is about 293.1548064277.

The spelling of 25193648 in words is "twenty-five million, one hundred ninety-three thousand, six hundred forty-eight".