28052575580 has 24 divisors (see below), whose sum is σ = 58987852560. Its totient is φ = 11206279040.

The previous prime is 28052575571. The next prime is 28052575589. The reversal of 28052575580 is 8557525082.

It is an interprime number because it is at equal distance from previous prime (28052575571) and next prime (28052575589).

It is a super-2 number, since 2×28052575580² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052575589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906350 + ... + 936789.

It is an arithmetic number, because the mean of its divisors is an integer number (2457827190).

Almost surely, 2^28052575580 is an apocalyptic number.

28052575580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28052575580 is an abundant number, since it is smaller than the sum of its proper divisors (30935276980).

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

28052575580 is a wasteful number, since it uses less digits than its factorization.

28052575580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843909 (or 1843907 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 47.

The spelling of 28052575580 in words is "twenty-eight billion, fifty-two million, five hundred seventy-five thousand, five hundred eighty".