28481596550 has 24 divisors (see below), whose sum is σ = 57791749752. Its totient is φ = 10356944000.

The previous prime is 28481596531. The next prime is 28481596553. The reversal of 28481596550 is 5569518482.

It is a super-2 number, since 2×28481596550² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28481596492 and 28481596501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28481596553) 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, 25891811 + ... + 25892910.

It is an arithmetic number, because the mean of its divisors is an integer number (2407989573).

Almost surely, 2^28481596550 is an apocalyptic number.

28481596550 is an abundant number, since it is smaller than the sum of its proper divisors (29310153202).

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

28481596550 is a wasteful number, since it uses less digits than its factorization.

28481596550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51784744 (or 51784739 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 53.

The spelling of 28481596550 in words is "twenty-eight billion, four hundred eighty-one million, five hundred ninety-six thousand, five hundred fifty".