2561316 has 24 divisors (see below), whose sum is σ = 6002304. Its totient is φ = 850080.

The previous prime is 2561291. The next prime is 2561323. The reversal of 2561316 is 6131652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (250096).

2^2561316 is an apocalyptic number.

It is an amenable number.

2561316 is an abundant number, since it is smaller than the sum of its proper divisors (3440988).

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

2561316 is a wasteful number, since it uses less digits than its factorization.

2561316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 929 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2561316 is about 1600.4111971615. The cubic root of 2561316 is about 136.8215126389.

Adding to 2561316 its reverse (6131652), we get a palindrome (8692968).

The spelling of 2561316 in words is "two million, five hundred sixty-one thousand, three hundred sixteen".