28280500532 has 24 divisors (see below), whose sum is σ = 49858872000. Its totient is φ = 14035450176.

The previous prime is 28280500531. The next prime is 28280500559. The reversal of 28280500532 is 23500508282.

It is a junction number, because it is equal to n+sod(n) for n = 28280500492 and 28280500501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28280500531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291128 + ... + 375920.

It is an arithmetic number, because the mean of its divisors is an integer number (2077453000).

Almost surely, 2^28280500532 is an apocalyptic number.

It is an amenable number.

28280500532 is a deficient number, since it is larger than the sum of its proper divisors (21578371468).

28280500532 is a wasteful number, since it uses less digits than its factorization.

28280500532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85415 (or 85413 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 28280500532 in words is "twenty-eight billion, two hundred eighty million, five hundred thousand, five hundred thirty-two".