2557320316 has 12 divisors (see below), whose sum is σ = 4538343600. Its totient is φ = 1260650720.

The previous prime is 2557320307. The next prime is 2557320317. The reversal of 2557320316 is 6130237552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557320317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4502041 + ... + 4502608.

It is an arithmetic number, because the mean of its divisors is an integer number (378195300).

Almost surely, 2^2557320316 is an apocalyptic number.

It is an amenable number.

2557320316 is a deficient number, since it is larger than the sum of its proper divisors (1981023284).

2557320316 is a wasteful number, since it uses less digits than its factorization.

2557320316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004724 (or 9004722 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 2557320316 is about 50569.9546766655. The cubic root of 2557320316 is about 1367.5032787037.

Adding to 2557320316 its reverse (6130237552), we get a palindrome (8687557868).

The spelling of 2557320316 in words is "two billion, five hundred fifty-seven million, three hundred twenty thousand, three hundred sixteen".