27056720 has 80 divisors (see below), whose sum is σ = 65902032. Its totient is φ = 10321920.

The previous prime is 27056699. The next prime is 27056723. The reversal of 27056720 is 2765072.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9784384 + 17272336 = 3128^2 + 4156^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27056723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239384 + ... + 239496.

Almost surely, 2^27056720 is an apocalyptic number.

27056720 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 27056720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32951016).

27056720 is an abundant number, since it is smaller than the sum of its proper divisors (38845312).

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

27056720 is a wasteful number, since it uses less digits than its factorization.

27056720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 27056720 is about 5201.6074438581. The cubic root of 27056720 is about 300.2099271418.

The spelling of 27056720 in words is "twenty-seven million, fifty-six thousand, seven hundred twenty".