28255005300 has 72 divisors (see below), whose sum is σ = 81799826976. Its totient is φ = 7530181760.

The previous prime is 28255005287. The next prime is 28255005307. The reversal of 28255005300 is 350055282.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255005307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 492727 + ... + 547073.

It is an arithmetic number, because the mean of its divisors is an integer number (1136108708).

Almost surely, 2^28255005300 is an apocalyptic number.

28255005300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28255005300 is an abundant number, since it is smaller than the sum of its proper divisors (53544821676).

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

28255005300 is a wasteful number, since it uses less digits than its factorization.

28255005300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56097 (or 56090 counting only the distinct ones).

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

The spelling of 28255005300 in words is "twenty-eight billion, two hundred fifty-five million, five thousand, three hundred".