25778048 has 32 divisors (see below), whose sum is σ = 52752360. Its totient is φ = 12538368.

The previous prime is 25778047. The next prime is 25778059. The reversal of 25778048 is 84087752.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 25777996 and 25778014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25778047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015 + ... + 7457.

Almost surely, 2^25778048 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 25778048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26376180).

25778048 is an abundant number, since it is smaller than the sum of its proper divisors (26974312).

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

25778048 is an equidigital number, since it uses as much as digits as its factorization.

25778048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 5482 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 25778048 is about 5077.2086819433. The cubic root of 25778048 is about 295.4042069894.

The spelling of 25778048 in words is "twenty-five million, seven hundred seventy-eight thousand, forty-eight".