28552258516 has 12 divisors (see below), whose sum is σ = 51128463232. Its totient is φ = 13944126168.

The previous prime is 28552258513. The next prime is 28552258543. The reversal of 28552258516 is 61585225582.

It is a self number, because there is not a number n which added to its sum of digits gives 28552258516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28552258513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83000580 + ... + 83000923.

Almost surely, 2^28552258516 is an apocalyptic number.

It is an amenable number.

28552258516 is a deficient number, since it is larger than the sum of its proper divisors (22576204716).

28552258516 is a wasteful number, since it uses less digits than its factorization.

28552258516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166001550 (or 166001548 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 49.

The spelling of 28552258516 in words is "twenty-eight billion, five hundred fifty-two million, two hundred fifty-eight thousand, five hundred sixteen".