28300255500 has 96 divisors (see below), whose sum is σ = 89902245888. Its totient is φ = 6860664000.

The previous prime is 28300255499. The next prime is 28300255517. The reversal of 28300255500 is 555200382.

It is a super-2 number, since 2×28300255500² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 841084 + ... + 874083.

It is an arithmetic number, because the mean of its divisors is an integer number (936481728).

Almost surely, 2^28300255500 is an apocalyptic number.

28300255500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28300255500 is an abundant number, since it is smaller than the sum of its proper divisors (61601990388).

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

28300255500 is a wasteful number, since it uses less digits than its factorization.

28300255500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715200 (or 1715188 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 28300255500 its reverse (555200382), we get a palindrome (28855455882).

The spelling of 28300255500 in words is "twenty-eight billion, three hundred million, two hundred fifty-five thousand, five hundred".