20081825533028 has 48 divisors (see below), whose sum is σ = 42564291719040. Its totient is φ = 8092980158976.

The previous prime is 20081825533013. The next prime is 20081825533039. The reversal of 20081825533028 is 82033552818002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18353138 + ... + 19416521.

It is an arithmetic number, because the mean of its divisors is an integer number (886756077480).

Almost surely, 2^{20081825533028} is an apocalyptic number.

20081825533028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20081825533028 is an abundant number, since it is smaller than the sum of its proper divisors (22482466186012).

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

20081825533028 is a wasteful number, since it uses less digits than its factorization.

20081825533028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37770804 (or 37770802 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 20081825533028 in words is "twenty trillion, eighty-one billion, eight hundred twenty-five million, five hundred thirty-three thousand, twenty-eight".