2555312320 has 112 divisors (see below), whose sum is σ = 6763743648. Its totient is φ = 911605760.

The previous prime is 2555312317. The next prime is 2555312327. The reversal of 2555312320 is 232135552.

It is not an unprimeable number, because it can be changed into a prime (2555312327) 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, 179712 + ... + 193408.

Almost surely, 2^2555312320 is an apocalyptic number.

2555312320 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 2555312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3381871824).

2555312320 is an abundant number, since it is smaller than the sum of its proper divisors (4208431328).

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

2555312320 is a wasteful number, since it uses less digits than its factorization.

2555312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778 (or 13768 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 2555312320 is about 50550.0971314596. The cubic root of 2555312320 is about 1367.1452659158.

Adding to 2555312320 its reverse (232135552), we get a palindrome (2787447872).

It can be divided in two parts, 25553 and 12320, that added together give a palindrome (37873).

The spelling of 2555312320 in words is "two billion, five hundred fifty-five million, three hundred twelve thousand, three hundred twenty".