25666848 has 96 divisors (see below), whose sum is σ = 76245120. Its totient is φ = 8398080.

The previous prime is 25666843. The next prime is 25666859. The reversal of 25666848 is 84866652.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (45) 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 (25666843) 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, 52461 + ... + 52947.

It is an arithmetic number, because the mean of its divisors is an integer number (794220).

Almost surely, 2^25666848 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 25666848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38122560).

25666848 is an abundant number, since it is smaller than the sum of its proper divisors (50578272).

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

25666848 is a wasteful number, since it uses less digits than its factorization.

25666848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 553 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 25666848 is about 5066.2459474447. The cubic root of 25666848 is about 294.9788283187.

The spelling of 25666848 in words is "twenty-five million, six hundred sixty-six thousand, eight hundred forty-eight".