28052800500500 has 24 divisors (see below), whose sum is σ = 61267316294184. Its totient is φ = 11221120200000.

The previous prime is 28052800500481. The next prime is 28052800500521. The reversal of 28052800500500 is 500500825082.

It can be written as a sum of positive squares in 4 ways, for example, as 227225476 + 28052573275024 = 15074^2 + 5296468^2 .

It is a super-3 number, since 3×28052800500500³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28052800001 + ... + 28052801000.

It is an arithmetic number, because the mean of its divisors is an integer number (2552804845591).

Almost surely, 2^{28052800500500} is an apocalyptic number.

28052800500500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28052800500500 is an abundant number, since it is smaller than the sum of its proper divisors (33214515793684).

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

28052800500500 is a wasteful number, since it uses less digits than its factorization.

28052800500500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56105601020 (or 56105601008 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The spelling of 28052800500500 in words is "twenty-eight trillion, fifty-two billion, eight hundred million, five hundred thousand, five hundred".