2556320316 has 96 divisors (see below), whose sum is σ = 6703312896. Its totient is φ = 751488000.

The previous prime is 2556320297. The next prime is 2556320323. The reversal of 2556320316 is 6130236552.

2556320316 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 (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1032456 + ... + 1034928.

It is an arithmetic number, because the mean of its divisors is an integer number (69826176).

Almost surely, 2^2556320316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2556320316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3351656448).

2556320316 is an abundant number, since it is smaller than the sum of its proper divisors (4146992580).

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

2556320316 is a wasteful number, since it uses less digits than its factorization.

2556320316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 2556320316 is about 50560.0664160956. The cubic root of 2556320316 is about 1367.3250085621.

Adding to 2556320316 its reverse (6130236552), we get a palindrome (8686556868).

The spelling of 2556320316 in words is "two billion, five hundred fifty-six million, three hundred twenty thousand, three hundred sixteen".