25788730 has 24 divisors (see below), whose sum is σ = 51025716. Its totient is φ = 9377280.

The previous prime is 25788703. The next prime is 25788733. The reversal of 25788730 is 3788752.

It can be written as a sum of positive squares in 2 ways, for example, as 24830289 + 958441 = 4983^2 + 979^2 .

It is not an unprimeable number, because it can be changed into a prime (25788733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9447 + ... + 11866.

Almost surely, 2^25788730 is an apocalyptic number.

25788730 is a deficient number, since it is larger than the sum of its proper divisors (25236986).

25788730 is a wasteful number, since it uses less digits than its factorization.

25788730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21342 (or 21331 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 25788730 is about 5078.2605289607. The cubic root of 25788730 is about 295.4450049062.

The spelling of 25788730 in words is "twenty-five million, seven hundred eighty-eight thousand, seven hundred thirty".