2755449720 has 96 divisors (see below), whose sum is σ = 8967928320. Its totient is φ = 733743360.

The previous prime is 2755449713. The next prime is 2755449757. The reversal of 2755449720 is 279445572.

2755449720 is a `hidden beast` number, since 2 + 7 + 554 + 4 + 97 + 2 + 0 = 666.

2755449720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267465 + ... + 277575.

It is an arithmetic number, because the mean of its divisors is an integer number (93415920).

Almost surely, 2^2755449720 is an apocalyptic number.

2755449720 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 2755449720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4483964160).

2755449720 is an abundant number, since it is smaller than the sum of its proper divisors (6212478600).

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

2755449720 is a wasteful number, since it uses less digits than its factorization.

2755449720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10885 (or 10878 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 2755449720 is about 52492.3777323908. The cubic root of 2755449720 is about 1401.9445291894.

The spelling of 2755449720 in words is "two billion, seven hundred fifty-five million, four hundred forty-nine thousand, seven hundred twenty".