27805055055500 has 48 divisors (see below), whose sum is σ = 61113031752864. Its totient is φ = 11051181086400.

The previous prime is 27805055055497. The next prime is 27805055055511. The reversal of 27805055055500 is 555055050872.

It is a super-2 number, since 2×27805055055500² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177023762 + ... + 177180761.

It is an arithmetic number, because the mean of its divisors is an integer number (1273188161518).

Almost surely, 2^{27805055055500} is an apocalyptic number.

27805055055500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27805055055500 is an abundant number, since it is smaller than the sum of its proper divisors (33307976697364).

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

27805055055500 is a wasteful number, since it uses less digits than its factorization.

27805055055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354204699 (or 354204687 counting only the distinct ones).

The product of its (nonzero) digits is 1750000, while the sum is 47.

The spelling of 27805055055500 in words is "twenty-seven trillion, eight hundred five billion, fifty-five million, fifty-five thousand, five hundred".