25260768 has 144 divisors (see below), whose sum is σ = 80241840. Its totient is φ = 7727616.

The previous prime is 25260757. The next prime is 25260773. The reversal of 25260768 is 86706252.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145930 + ... + 146102.

It is an arithmetic number, because the mean of its divisors is an integer number (557235).

Almost surely, 2^25260768 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 25260768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40120920).

25260768 is an abundant number, since it is smaller than the sum of its proper divisors (54981072).

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

25260768 is a wasteful number, since it uses less digits than its factorization.

25260768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 25260768 is about 5026.0091523991. The cubic root of 25260768 is about 293.4149130304.

The spelling of 25260768 in words is "twenty-five million, two hundred sixty thousand, seven hundred sixty-eight".