2255378720 has 96 divisors (see below), whose sum is σ = 6299596800. Its totient is φ = 746597376.

The previous prime is 2255378701. The next prime is 2255378737. The reversal of 2255378720 is 278735522.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2240 + ... + 67199.

It is an arithmetic number, because the mean of its divisors is an integer number (65620800).

Almost surely, 2^2255378720 is an apocalyptic number.

2255378720 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 2255378720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3149798400).

2255378720 is an abundant number, since it is smaller than the sum of its proper divisors (4044218080).

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

2255378720 is a wasteful number, since it uses less digits than its factorization.

2255378720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69490 (or 69482 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 2255378720 is about 47490.8277459974. The cubic root of 2255378720 is about 1311.4140316599.

The spelling of 2255378720 in words is "two billion, two hundred fifty-five million, three hundred seventy-eight thousand, seven hundred twenty".