25768782 has 72 divisors (see below), whose sum is σ = 62177544. Its totient is φ = 7705152.

The previous prime is 25768751. The next prime is 25768783. The reversal of 25768782 is 28786752.

25768782 is a `hidden beast` number, since 2 + 576 + 8 + 78 + 2 = 666.

It is a super-3 number, since 3×25768782³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25768783) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130708 + ... + 130904.

It is an arithmetic number, because the mean of its divisors is an integer number (863577).

Almost surely, 2^25768782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25768782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31088772).

25768782 is an abundant number, since it is smaller than the sum of its proper divisors (36408762).

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

25768782 is a wasteful number, since it uses less digits than its factorization.

25768782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 258 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 25768782 is about 5076.2960906551. The cubic root of 25768782 is about 295.3688080922.

The spelling of 25768782 in words is "twenty-five million, seven hundred sixty-eight thousand, seven hundred eighty-two".