25775030728 has 16 divisors (see below), whose sum is σ = 48500173260. Its totient is φ = 12841651200.

The previous prime is 25775030719. The next prime is 25775030731. The reversal of 25775030728 is 82703057752.

It can be written as a sum of positive squares in 2 ways, for example, as 22194444484 + 3580586244 = 148978^2 + 59838^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5730633 + ... + 5735128.

Almost surely, 2^25775030728 is an apocalyptic number.

It is an amenable number.

25775030728 is a deficient number, since it is larger than the sum of its proper divisors (22725142532).

25775030728 is a wasteful number, since it uses less digits than its factorization.

25775030728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466048 (or 11466044 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 46.

It can be divided in two parts, 2577 and 5030728, that added together give a palindrome (5033305).

The spelling of 25775030728 in words is "twenty-five billion, seven hundred seventy-five million, thirty thousand, seven hundred twenty-eight".