25775488 has 32 divisors (see below), whose sum is σ = 52020000. Its totient is φ = 12719616.

The previous prime is 25775483. The next prime is 25775501. The reversal of 25775488 is 88457752.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25775483) 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, 8838 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (1625625).

Almost surely, 2^25775488 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 25775488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26010000).

25775488 is an abundant number, since it is smaller than the sum of its proper divisors (26244512).

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

25775488 is an equidigital number, since it uses as much as digits as its factorization.

25775488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2630 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The square root of 25775488 is about 5076.9565686541. The cubic root of 25775488 is about 295.3944278703.

The spelling of 25775488 in words is "twenty-five million, seven hundred seventy-five thousand, four hundred eighty-eight".