27055840 has 192 divisors, whose sum is σ = 81648000. Its totient is φ = 8429568.

The previous prime is 27055813. The next prime is 27055849. The reversal of 27055840 is 4855072.

27055840 = T₇₅₅ + T₇₅₆ + ... + T₈₃₉.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27055849) 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 31 ways as a sum of consecutive naturals, for example, 932946 + ... + 932974.

It is an arithmetic number, because the mean of its divisors is an integer number (425250).

Almost surely, 2^27055840 is an apocalyptic number.

27055840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27055840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40824000).

27055840 is an abundant number, since it is smaller than the sum of its proper divisors (54592160).

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

27055840 is a wasteful number, since it uses less digits than its factorization.

27055840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 27055840 is about 5201.5228539342. The cubic root of 27055840 is about 300.2066724038.

The spelling of 27055840 in words is "twenty-seven million, fifty-five thousand, eight hundred forty".